Themed collection 2022 Green Chemistry Hot Articles

94 items - Showing page 1 of 2
Open Access Tutorial Review

Expanding plastics recycling technologies: chemical aspects, technology status and challenges

This paper reviewed the entire life cycle of plastics and options for the management of plastic waste to address barriers to industrial chemical recycling and further provide perceptions on possible opportunities with such materials.

Graphical abstract: Expanding plastics recycling technologies: chemical aspects, technology status and challenges
From the themed collection: 2022 Green Chemistry Hot Articles
Tutorial Review

Cyrene: a bio-based novel and sustainable solvent for organic synthesis

This review highlights the use of Cyrene as an alternative green solvent in organic synthesis.

Graphical abstract: Cyrene: a bio-based novel and sustainable solvent for organic synthesis
From the themed collection: 2022 Green Chemistry Hot Articles
Tutorial Review

Supramolecular deep eutectic solvents and their applications

Supramolecular Deep Eutectic Solvent (SUPRADES) – another milestone towards Green Chemistry.

Graphical abstract: Supramolecular deep eutectic solvents and their applications
From the themed collection: 2022 Green Chemistry Hot Articles
Tutorial Review

Synthesis of porous poly(ionic liquid)s for chemical CO2 fixation with epoxides

Porous poly(ionic liquid)s, combining the features of porous polymers and ionic moieties resembling the structures and functions of ionic liquids, have exhibited promising potential in CO2 fixation via cycloadditions with epoxides.

Graphical abstract: Synthesis of porous poly(ionic liquid)s for chemical CO2 fixation with epoxides
From the themed collection: 2022 Green Chemistry Hot Articles
Critical Review

Integrated design of an amination process of lignin oxygenated model compounds to synthesize cyclohexylamine: catalyst nanostructure engineering and catalytic conditional strategy

This review summarizes the research progress in the one-pot catalytic amination of lignin oxygenated model compounds to cyclohexylamine, specifically from the catalyst nanostructure engineering and catalytic conditional strategy.

Graphical abstract: Integrated design of an amination process of lignin oxygenated model compounds to synthesize cyclohexylamine: catalyst nanostructure engineering and catalytic conditional strategy
From the themed collection: 2022 Green Chemistry Hot Articles
Critical Review

Hydrodeoxygenation of potential platform chemicals derived from biomass to fuels and chemicals

This review summarizes a variety of catalytic systems to achieve the selective hydrodeoxygenation of potent biomass-derived platform chemicals with a focus on features including catalytic performance, active sites, and mechanism.

Graphical abstract: Hydrodeoxygenation of potential platform chemicals derived from biomass to fuels and chemicals
From the themed collection: 2022 Green Chemistry Hot Articles
Critical Review

Progress in the catalytic reactions of CO2 and epoxides to selectively provide cyclic or polymeric carbonates

This review of the metal- and organo-catalyzed coupling of CO2 and epoxides (oxiranes) to provide selectively cyclic or polymeric carbonates is intended to highlight recent achievements in this area of research.

Graphical abstract: Progress in the catalytic reactions of CO2 and epoxides to selectively provide cyclic or polymeric carbonates
From the themed collection: 2022 Green Chemistry Hot Articles
Critical Review

Biomass-derived 2-methyltetrahydrofuran platform: a focus on precious and non-precious metal-based catalysts for the biorefinery

The existing literature has been summarized and synthesized, providing a new outlook for the preparation of 2-methyltetrahydrofuran from biomass substrates using precious and non-precious metal catalysts.

Graphical abstract: Biomass-derived 2-methyltetrahydrofuran platform: a focus on precious and non-precious metal-based catalysts for the biorefinery
From the themed collection: 2022 Green Chemistry Hot Articles
Critical Review

Making more with less: confinement effects for more sustainable chemical transformations

Confinement effects offer unique opportinuties to facilitate reactions in a way to favor sustainability... in an almost magical way.

Graphical abstract: Making more with less: confinement effects for more sustainable chemical transformations
From the themed collection: 2022 Green Chemistry Hot Articles
Critical Review

Recent advances in biological production of 1,3-propanediol: new routes and engineering strategies

The development of new biological routes for 1,3-propanediol production from diversified substrates using engineered producers, new chassis, and new pathways.

Graphical abstract: Recent advances in biological production of 1,3-propanediol: new routes and engineering strategies
From the themed collection: 2022 Green Chemistry Hot Articles
Critical Review

Sustainability in peptide chemistry: current synthesis and purification technologies and future challenges

Developing greener synthesis processes is an inescapable necessity to transform the industrial landscape, mainly in the pharmaceutical sector, into a long-term, sustainable reality.

Graphical abstract: Sustainability in peptide chemistry: current synthesis and purification technologies and future challenges
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Antioxidant-induced transformations of a metal-acid hydrocracking catalyst in the deconstruction of polyethylene waste

This work details the effect of common antioxidants on the activity and functionality of a hydrocracking catalyst, along with associated changes to the product distribution in the deconstruction of high-density polyethylene.

Graphical abstract: Antioxidant-induced transformations of a metal-acid hydrocracking catalyst in the deconstruction of polyethylene waste
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Visible-light-induced sulfonylarylation of unactivated alkenes via 1,4-(hetero)aryl migration from oxygen or nitrogen to carbon

A new, metal-free, and highly atom economical strategy for the difunctionalization of unactivated alkenes under mild conditions.

Graphical abstract: Visible-light-induced sulfonylarylation of unactivated alkenes via 1,4-(hetero)aryl migration from oxygen or nitrogen to carbon
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Visible-light-driven regioselective carbocarboxylation of 1,3-dienes with organic halides and CO2

An unprecedented visible-light-driven regioselective carbocarboxylation of 1,3-dienes with CO2 using aryl and alkyl halides under mild conditions is reported herein.

Graphical abstract: Visible-light-driven regioselective carbocarboxylation of 1,3-dienes with organic halides and CO2
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Difunctionalization of unactivated olefins via selective electrochemical chlorosulfuration or chlorosulfoxidation

We introduced a combination of simple graphite electrodes, mild conditions, and a simple workup procedure for the selective preparation of sulfides or sulfoxides via unactivated olefins and thiophenols through a green electrochemical protocol.

Graphical abstract: Difunctionalization of unactivated olefins via selective electrochemical chlorosulfuration or chlorosulfoxidation
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Practical synthesis of quinolone drugs via a novel TsCl-mediated domino reaction sequence

A novel TsCl-mediated domino sequence to expeditiously access quinolone-based antibiotics, starting from commercially available chromone-3-carboxaldehydes and amines, was developed under environmentally benign conditions.

Graphical abstract: Practical synthesis of quinolone drugs via a novel TsCl-mediated domino reaction sequence
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Electrochemical enaminone C–H thiolation/C–N amination cascade for thiazole synthesis and its diastereoselective dearomatization

The electrochemical annulation of enaminones/analogous enamines and thioureas providing 2-aminothiazoles has been realized. Modulating the electrolyte enables the diastereoselective synthesis of 4,5-dialkoxyl thiazolines by dearomatization.

Graphical abstract: Electrochemical enaminone C–H thiolation/C–N amination cascade for thiazole synthesis and its diastereoselective dearomatization
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Photoinduced synthesis of functionalized oxetanes via diradical-mediated ring contraction

A photochemical ring contraction is reported for the synthesis of oxetanes from dihydrofurans and diazo compounds under catalyst-free conditions.

Graphical abstract: Photoinduced synthesis of functionalized oxetanes via diradical-mediated ring contraction
From the themed collection: 2022 Green Chemistry Hot Articles
Open Access Communication

Near quantitative conversion of xylose into bisfuran

Xylose is converted to a new type of bisfuranic compound in nearly quantitative yield with acetylacetone, through a Zr-catalysed Garcia Gonzalez reaction-based strategy by losing five molecules of water.

Graphical abstract: Near quantitative conversion of xylose into bisfuran
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Photoinduced cascade cyclization of alkynes with NH4SCN: access to SCN-containing dibenzazepines or dioxodibenzothiazepines

Photoinduced tandem cyclization of alkynes with NH4SCN was developed for the synthesis of various SCN-containing seven-membered N-heterocycles.

Graphical abstract: Photoinduced cascade cyclization of alkynes with NH4SCN: access to SCN-containing dibenzazepines or dioxodibenzothiazepines
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Deep eutectic solvents meet safe, scalable and sustainable hydrogenations enabled by aluminum powder and Pd/C

The in situ generation of H2 from aluminum powder and water/KOH enabled a general hydrogenation method in cholinium chloride/glycerol deep eutectic solvent under Pd/C catalysis.

Graphical abstract: Deep eutectic solvents meet safe, scalable and sustainable hydrogenations enabled by aluminum powder and Pd/C
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Chemical recycling of polyhydroxybutyrate and polylactic acid over supported Ru catalysts

As an important step towards circular value-chains for bioplastics, we report a strategy for the direct catalytic processing of two biopolyesters.

Graphical abstract: Chemical recycling of polyhydroxybutyrate and polylactic acid over supported Ru catalysts
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Organocatalyzed trifunctionalization of alkynyl 1,2-diones for the concise synthesis of acyloxy allylidene malonates and γ-alkylidenebutenolides

Two unprecedented reactions using alkynyl 1,2-diketones and 1,3-dicarbonyls under phosphine catalysis have been achieved, furnishing a range of acyloxy allylidene malonates and γ-alkylidenebutenolides in good yields with high stereoselectivities.

Graphical abstract: Organocatalyzed trifunctionalization of alkynyl 1,2-diones for the concise synthesis of acyloxy allylidene malonates and γ-alkylidenebutenolides
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

From PEF to rPEF: disclosing the potential of deep eutectic solvents in continuous de-/re-polymerization recycling of biobased polyesters

For the first time, the design of a urea : zinc acetate DES for a continuous, eco-friendly and closed-loop approach for recycling poly(ethylene 2,5-furandicarboxylate) (PEF) is communicated to avoid its future accumulation in the environment.

Graphical abstract: From PEF to rPEF: disclosing the potential of deep eutectic solvents in continuous de-/re-polymerization recycling of biobased polyesters
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Transition metal-free selective C–S bond cleavage of Ugi-adducts for rapid preparation of peptidomimetics

Diverse peptidomimetics containing N,O- or N,S-aminals are synthesized via a transition metal-free C–S bond cleavage and subsequent Mannich reaction.

Graphical abstract: Transition metal-free selective C–S bond cleavage of Ugi-adducts for rapid preparation of peptidomimetics
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

HP(O)Ph2/H2O-promoted hydrodefluorination of trifluoromethyl alkenes

An efficient transition-metal-free hydrodefluorination reaction of trifluoromethyl alkenes for accessing gem-difluoroalkenes is developed. It was surprising to find that the phosphoryl anion is able to mediate the defluorination.

Graphical abstract: HP(O)Ph2/H2O-promoted hydrodefluorination of trifluoromethyl alkenes
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Thermoneutral synthesis of spiro-1,4-cyclohexadienes by visible-light-driven dearomatization of benzylmalonates

No preactivation or coupling to high-energy reagents is required for the dearomative coupling of benzylmalonates and acetylenes, although the transformation has no significant thermodynamic driving force.

Graphical abstract: Thermoneutral synthesis of spiro-1,4-cyclohexadienes by visible-light-driven dearomatization of benzylmalonates
From the themed collection: 2022 Green Chemistry Hot Articles
Open Access Communication

Synthesis of 2,5-furandicarboxylic acid dimethyl ester from galactaric acid via dimethyl carbonate chemistry

A simple procedure for the one-pot synthesis of 2,5-furandicarboxylic acid dimethyl ester (FDME) from galactaric (mucic) acid via dimethyl carbonate (DMC) chemistry is presented. The compound was isolated as a white powder in 70% yield.

Graphical abstract: Synthesis of 2,5-furandicarboxylic acid dimethyl ester from galactaric acid via dimethyl carbonate chemistry
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Boosting CO2 electroreduction to C2+ products on fluorine-doped copper

CO2 could be efficiently converted into C2+ products over a fluorine doped Cu catalyst, with high faradaic efficiency (70.4%) and current density (above 400 mA cm−2), which benefited from the boost the adsorption of CO intermediate.

Graphical abstract: Boosting CO2 electroreduction to C2+ products on fluorine-doped copper
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Synthesis of carboxylic acids via the hydrocarboxylation of alcohols with CO2 and H2

Alcohols with different chain lengths can react with CO2 and H2 to produce C1-elongated carboxylic acids using an Ir catalyst.

Graphical abstract: Synthesis of carboxylic acids via the hydrocarboxylation of alcohols with CO2 and H2
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Electrochemical-induced benzyl C–H amination towards the synthesis of isoindolinones via aroyloxy radical-mediated C–H activation

A novel electrochemical strategy for the synthesis of valuable isoindolinones has been developed with the use of simple o-alkylbenzoic acid and alkyl nitrile as starting materials under metal-catalyst and external oxidant-free conditions.

Graphical abstract: Electrochemical-induced benzyl C–H amination towards the synthesis of isoindolinones via aroyloxy radical-mediated C–H activation
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Tuning the efficiency and product composition for electrocatalytic CO2 reduction to syngas over zinc films by morphology and wettability

The regulation of morphology and wettability of Zn films is an efficient strategy for producing syngas with a wide CO/H2 ratio range from electrochemical CO2 and H2O reduction.

Graphical abstract: Tuning the efficiency and product composition for electrocatalytic CO2 reduction to syngas over zinc films by morphology and wettability
From the themed collection: 2022 Green Chemistry Hot Articles
Communication

Boosting nitrate electroreduction to ammonia on NbOxvia constructing oxygen vacancies

A NbOx catalyst with oxygen vacancies is synthesized and used for nitrate electroreduction to ammonia. The faradaic efficiency of 94.5% and the NH3 formation rate of 55.0 μg h−1 mgcat−1 can be achieved in a neutral electrolyte.

Graphical abstract: Boosting nitrate electroreduction to ammonia on NbOxvia constructing oxygen vacancies
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Photocatalytic dehydrogenated etherification of 2-aryl benzylic alcohols

Here we describe an efficient and practical method for the conversion of 2-aryl benzylic alcohols into the corresponding chromenes with the synergistic interactions of 2-bromoanthraquinone, O2nBu4NBr and K2CO3 under visible-light irradiation.

Graphical abstract: Photocatalytic dehydrogenated etherification of 2-aryl benzylic alcohols
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Green chemical pathway of plasma synthesis of ammonia from nitrogen and water: a comparative kinetic study with a N2/H2 system

This work demonstrates alternative green ammonia processing using nitrogen and water based non-thermal plasma without pure hydrogen supply which results in an enormous amount of CO2 emission.

Graphical abstract: Green chemical pathway of plasma synthesis of ammonia from nitrogen and water: a comparative kinetic study with a N2/H2 system
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Start from the source: direct treatment of a degraded LiFePO4 cathode for efficient recycling of spent lithium-ion batteries

The flow process of recycling a degraded LiFePO4 cathode.

Graphical abstract: Start from the source: direct treatment of a degraded LiFePO4 cathode for efficient recycling of spent lithium-ion batteries
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Redox-neutral ketyl radical coupling/cyclization of carbonyls with N-aryl acrylamides through consecutive photoinduced electron transfer

Redox-neutral ketyl couplings: a metal- and additive-free ConPET photocatalytic system allows highly efficient coupling/cyclization of N-aryl acrylamides and carbonyls with formal 100% atom economy.

Graphical abstract: Redox-neutral ketyl radical coupling/cyclization of carbonyls with N-aryl acrylamides through consecutive photoinduced electron transfer
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Photo-driven metal-free multicomponent reaction between aldehydes, anilines and 4-substituted-DHPs for the synthesis of secondary amines

A photocatalyst- and transition-metal-free multicomponent reaction of readily available aldehydes, primary amines and 4-alkyl-1,4-dihydropyridines for the synthesis of secondary amines under visible light irradiation has been accomplished.

Graphical abstract: Photo-driven metal-free multicomponent reaction between aldehydes, anilines and 4-substituted-DHPs for the synthesis of secondary amines
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

A sustainable way of recycling polyamides: dissolution and ammonolysis of polyamides to diamines and diamides using ammonia and biosourced glycerol

Graphical representation of Lewis acid catalyzed ammonolysis of polyamide 66.

Graphical abstract: A sustainable way of recycling polyamides: dissolution and ammonolysis of polyamides to diamines and diamides using ammonia and biosourced glycerol
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

A high-efficiency zirconium-based single-atom catalyst for the transformation of biomass-derived 5 hydroxymethylfurfural to 2,5-bis(hydroxymethyl)furan with nearly 100% selectivity

A zirconium-based single-atom catalyst (Zr/NC) with Zr–N4 catalytic sites showed excellent catalytic activity, selectivity and turnover frequency for the transfer hydrogenation of HMF to BHMF in isopropanol.

Graphical abstract: A high-efficiency zirconium-based single-atom catalyst for the transformation of biomass-derived 5 hydroxymethylfurfural to 2,5-bis(hydroxymethyl)furan with nearly 100% selectivity
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

The development of a lead-free replacement for the Lindlar catalyst for alkyne semi-hydrogenation using silica supported, N-doped carbon modified cobalt nanoparticles

The synthesis of vitamin precursors via alkyne semi-hydrogenation has been achieved with a lead- and palladium-free catalyst.

Graphical abstract: The development of a lead-free replacement for the Lindlar catalyst for alkyne semi-hydrogenation using silica supported, N-doped carbon modified cobalt nanoparticles
From the themed collection: 2022 Green Chemistry Hot Articles
Open Access Paper

Cyclohexanone ammoximation via in situ H2O2 production using TS-1 supported catalysts

The in situ synthesis of H2O2 offers an attractive alternative to the current industrial route to cyclohexanone oxime, a major precursor to Nylon-6.

Graphical abstract: Cyclohexanone ammoximation via in situ H2O2 production using TS-1 supported catalysts
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Selective iron-catalyzed aerobic oxidation of alcohols in water to carboxylic acids mediated by additives

The iron catalyst (POM-Fe) could combine with chloride ions to form a supramolecular aggregate FeMo6·Cl, which was used in the oxidation of alcohols to carboxylic acids under mild conditions and can tolerate 40 substrates with moderate to high yield.

Graphical abstract: Selective iron-catalyzed aerobic oxidation of alcohols in water to carboxylic acids mediated by additives
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Sustainable photoredox chemistry of a transient ternary complex: an unconventional approach toward trifluoromethylated hydroquinones

Highly functional CF3–hydroquinones have been synthesized from benzoquinones and CF3SO2Na via a unique approach involving the formation of a transient ternary complex intermediate for facile photoinduced charge-transfer.

Graphical abstract: Sustainable photoredox chemistry of a transient ternary complex: an unconventional approach toward trifluoromethylated hydroquinones
From the themed collection: 2022 Green Chemistry Hot Articles
Open Access Paper

Anodic generation of hydrogen peroxide in continuous flow

The study underscores the development of an efficient electrochemical process for anodic H2O2 production in continuous flow by investigating electrochemical cell setup, electrolyte flow type and rate, as well as electrolyte composition.

Graphical abstract: Anodic generation of hydrogen peroxide in continuous flow
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Cathode electrolysis for the comprehensive recycling of spent lithium-ion batteries

Spent lithium-ion battery cathode materials, including Li, Ni, Co, Mn and conductive carbon and PVDF binder, were recycled via environmentally-friendly and low-cost electrolysis.

Graphical abstract: Cathode electrolysis for the comprehensive recycling of spent lithium-ion batteries
From the themed collection: 2022 Green Chemistry Hot Articles
Open Access Paper

Sustainable multicomponent indole synthesis with broad scope

A sustainable and energy efficient indole amide synthesis with a supreme ecological footprint as calculated by E-factor, process mass intensity and atom economy.

Graphical abstract: Sustainable multicomponent indole synthesis with broad scope
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Impact of aqueous micellar media on biocatalytic transformations involving transaminase (ATA); applications to chemoenzymatic catalysis

Surfactant-enabled asymmetric ATA-catalyzed reductive aminations in aqueous buffered media are described, representative of the enhanced levels of conversion made possible by the presence of a nonionic surfactant in the water, thereby enabling 1-pot chemoenzymatic catalysis.

Graphical abstract: Impact of aqueous micellar media on biocatalytic transformations involving transaminase (ATA); applications to chemoenzymatic catalysis
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Production of lactic acid mediated by compressed carbon dioxide on heterogeneous Ni(II) catalysts: a facile approach

The direct formation of lactic acid (C3) from acetaldehyde (C2) and CO2 (C1) as a coupling agent catalyzed by heterogeneous Ni/MCM-41 provides an excellent CO2 incorporation route toward the synthesis of α-hydroxy acid from various aldehydes.

Graphical abstract: Production of lactic acid mediated by compressed carbon dioxide on heterogeneous Ni(ii) catalysts: a facile approach
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Hydroxylation and dimerization of para-dihydroxylated aromatic compounds mediated by cold atmospheric-pressure plasma in comparison with chemically catalyzed reactions

Physical plasma as novel possibility for the synthesis of organic substances e.g. hydroxylated dimers.

Graphical abstract: Hydroxylation and dimerization of para-dihydroxylated aromatic compounds mediated by cold atmospheric-pressure plasma in comparison with chemically catalyzed reactions
From the themed collection: 2022 Green Chemistry Hot Articles
Open Access Paper

Halometallate ionic liquids: thermal properties, decomposition pathways, and life cycle considerations

A balance between cost, impact, and physicochemical properties is crucial for halometallate ILs, especially considering their susceptibility to catalytic poisoning.

Graphical abstract: Halometallate ionic liquids: thermal properties, decomposition pathways, and life cycle considerations
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Are deep eutectic solvents really green?: A life-cycle perspective

Life-cycle assessment of choline chloride/urea (reline) deep eutectic solvent compared with conventional organic solvents.

Graphical abstract: Are deep eutectic solvents really green?: A life-cycle perspective
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

A chemical approach for the future of PLA upcycling: from plastic wastes to new 3D printing materials

Chemical upcycling of PLA:  Ethanolamine cleaves polylactic acid to high purity N-LEA. N-LEA reacts with methacrylic anhydride (MAh) yielding crosslinkable DME. Simply combine DME with reactive diluent and photo-initiator to form a 3D printing resin.

Graphical abstract: A chemical approach for the future of PLA upcycling: from plastic wastes to new 3D printing materials
From the themed collection: 2022 Green Chemistry Hot Articles
Open Access Paper

Continuous extraction and concentration of secreted metabolites from engineered microbes using membrane technology

Light-driven engineered microalgal cultivation in photobioreactors coupled with membrane separations of secreted metabolites as next generation sustainable bio-processes.

Graphical abstract: Continuous extraction and concentration of secreted metabolites from engineered microbes using membrane technology
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Eco-friendly and sustainable approach of assembling sugars into biobased carbon fibers

Sugars are used as precursors to manufacture carbon fibers, obviating the need for hazardous solvents. Through the synergy of sugars and the hydrogel network, the carbon yield was significantly improved and the structure was well retained.

Graphical abstract: Eco-friendly and sustainable approach of assembling sugars into biobased carbon fibers
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Electrochemical oxidation of phenols in flow: a versatile and scalable access to para-benzoquinones

An electrochemical flow protocol for the continuous synthesis of para-benzoquinones from abundant phenols is reported.

Graphical abstract: Electrochemical oxidation of phenols in flow: a versatile and scalable access to para-benzoquinones
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Techno-economic performances and life cycle greenhouse gas emissions of various ammonia production pathways including conventional, carbon-capturing, nuclear-powered, and renewable production

The techno-economic performances and life cycle greenhouse gas emissions of conventional NG-based, carbon-capturing, and nuclear-powered or renewable ammonia production are evaluated.

Graphical abstract: Techno-economic performances and life cycle greenhouse gas emissions of various ammonia production pathways including conventional, carbon-capturing, nuclear-powered, and renewable production
From the themed collection: 2022 Green Chemistry Hot Articles
Open Access Paper

Oxidative cleavage of polysaccharides by a termite-derived superoxide dismutase boosts the degradation of biomass by glycoside hydrolases

A Cu/Zn superoxide dismutase isolated from termite gut can oxidise glucose polymers, boosting the activity of glycoside hydrolases.

Graphical abstract: Oxidative cleavage of polysaccharides by a termite-derived superoxide dismutase boosts the degradation of biomass by glycoside hydrolases
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Ultrasonic-assisted oxidation of cellulose to oxalic acid over gold nanoparticles supported on iron-oxide

We demonstrate a catalytic base-free strategy for the selective oxidation of microcrystalline cellulose to oxalic acid (OA) by combining low frequency ultrasound as an unconventional activation technique and Au/Fe2O3 as a catalyst.

Graphical abstract: Ultrasonic-assisted oxidation of cellulose to oxalic acid over gold nanoparticles supported on iron-oxide
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Integration of upcycling and closed-loop recycling through alternative cyclization–depolymerization

Through cyclization–depolymerization in an ionic liquid, linear poly(p-dioxanone) is upcycled to a cyclic polymer and recycled to a highly purified monomer, achieving a closed-bi-loop recycling.

Graphical abstract: Integration of upcycling and closed-loop recycling through alternative cyclization–depolymerization
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Metal-free photo-induced heteroarylations of C–H and C–C bonds of alcohols by flow chemistry

Practical, metal-free heteroarylations of inert C–H and C–C bonds of unprotected aliphatic alcohols are achieved in a ‘stop-flow’ micro-tubing reactor, and can be readily scaled up by a continuous-flow method.

Graphical abstract: Metal-free photo-induced heteroarylations of C–H and C–C bonds of alcohols by flow chemistry
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Photoredox/copper-catalyzed coupling of terminal alkynes with P(O)SH compounds leading to alkynyl phosphorothioates

The first pathway for the formation of alkynyl phosphorothioates via a visible-light-induced cross-dehydrogenative coupling reaction is reported.

Graphical abstract: Photoredox/copper-catalyzed coupling of terminal alkynes with P(O)SH compounds leading to alkynyl phosphorothioates
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Development of an ammonia pretreatment that creates synergies between biorefineries and advanced biomass logistics models

Biomass densification allows economic long-distance hauling and enables mega-biorefineries that benefit from economies of scale. COBRA-LE pretreatment uses densified biomass to achieve near-theoretical conversion of carbohydrates and usable lignin.

Graphical abstract: Development of an ammonia pretreatment that creates synergies between biorefineries and advanced biomass logistics models
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Highly efficient Markovnikov hydroaminocarbonylation of alkenes and alkynes catalyzed by a “soluble” heterogeneous Pd catalyst

Ultrafine Pd NPs dispersed in phosphine-built-in porous organic cage exhibited superior activity and Markovnikov regioselectivity for hydroaminocarbonylation of alkenes and alkynes to access a wide arrange of branched amides with strong stability.

Graphical abstract: Highly efficient Markovnikov hydroaminocarbonylation of alkenes and alkynes catalyzed by a “soluble” heterogeneous Pd catalyst
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Direct carbon capture for the production of high-performance biodegradable plastics by cyanobacterial cell factories

The engineered cyanobacterial cell factory was used to produce biodegradable polylactic acid directly from CO2.

Graphical abstract: Direct carbon capture for the production of high-performance biodegradable plastics by cyanobacterial cell factories
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Enabling room-temperature reductive C–N coupling of nitroarenes: combining homogeneous and heterogeneous synergetic catalyses mediated by light

The green synthesis of (hetero)aromatic amines is highly expected but challenging.

Graphical abstract: Enabling room-temperature reductive C–N coupling of nitroarenes: combining homogeneous and heterogeneous synergetic catalyses mediated by light
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Transition-metal-free regioselective and stereoselective C(sp2)–C(sp3) coupling of enamides with ethers or alkanes via photoredox-catalyzed cross-dehydrogenative coupling reactions

A regio- and stereoselective C(sp2)–C(sp3) coupling of enamides with ethers or alkanes via photoredox-catalyzed cross-dehydrogenative coupling reactions is developed under environmentally friendly conditions.

Graphical abstract: Transition-metal-free regioselective and stereoselective C(sp2)–C(sp3) coupling of enamides with ethers or alkanes via photoredox-catalyzed cross-dehydrogenative coupling reactions
From the themed collection: 2022 Green Chemistry Hot Articles
Open Access Paper

Visible-light photocatalytic metal-free multicomponent Ugi-like chemistry

The direct photoexcitation of isocyanides is able to trigger a collection of Ugi-like multicomponent reactions under metal-free conditions and in the absence of any additives starting from both linear and cyclic tertiary aromatic amines.

Graphical abstract: Visible-light photocatalytic metal-free multicomponent Ugi-like chemistry
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

‘In-water’, nickel-catalyzed mild preparation of allylic amines employing alcohols: application to ‘all-water’ synthesis of pharmaceuticals

Reported here is a nanomicelle-enabled, ‘in-water’, nickel-catalyzed allylic amination reaction using allylic alcohols under mild conditions (in the absence of additives/bases/activators).

Graphical abstract: ‘In-water’, nickel-catalyzed mild preparation of allylic amines employing alcohols: application to ‘all-water’ synthesis of pharmaceuticals
From the themed collection: 2022 Green Chemistry Hot Articles
Paper

Amine-free CO2-switchable hydrophilicity solvents and their application in extractions and polymer recycling

Liquid carboxylic acids, paired with NaOH, are amine-free, easily-removed nonvolatile solvents.

Graphical abstract: Amine-free CO2-switchable hydrophilicity solvents and their application in extractions and polymer recycling
From the themed collection: 2022 Green Chemistry Hot Articles
94 items - Showing page 1 of 2

About this collection

Welcome to our online rolling collection of the hottest work published in Green Chemistry. Here we feature all of the 2022 articles highlighted as HOT by our Editors and Referees. Congratulations to all those featured!

Spotlight

Advertisements