Themed collection 2024 Green Chemistry Hot Articles

This perspective provides the design, stability and unique properties regarding ionic liquid-stabilized metal oxoclusters and their application in catalysis, and also illustrates the future development of ionic liquid-stabilized metal oxoclusters.

This perspective showcases recent advances in amino acid synthesis from biomass through the chemocatalytic method.

The Green Chemistry Commitment (GCC) was founded in 2013 to host a community of practice around green chemistry in higher education. 10 years later, the GCC empowers a worldwide community to use chemistry tools to create a sustainable planet.

This article reviews different types of covalent porous catalysts for eCO2RR, including their design principles, the latest progress and their structure–activity relationships reported in recent literature.

Recent advances in electroreductive upgradation of biomass to high-value chemicals and energy-intensive biofuels via various transformation routes are showcased.

Strategies for building efficient electrocatalytic urea synthesis systems.

We reviewed the current oil-based and novel renewables pathways for the chemical synthesis of methionine and its hydroxy analogues. Their sustainability advantages and disadvantages were critically assessed.

Oxidative degradation of organoiridium waste by bleach enables quantitative iridium recovery without generating the highly inert metal. Based on that, we developed an ideal method for iridium recycling in academic-scale laboratories.

The validity of N₂ reduction experiments relies on control experiments with isotopically labelled ¹⁵N₂. Commercially obtained ¹⁵N₂ contains high amounts of ¹⁵NH₃ and other activated nitrogen species which are readily reduced to ¹⁵NH₃.

The upgrading of a benzyl-type alcohols was explored via an orthogonal tandem sequence comprised of a first oxidative step producing the corresponding aldehydes, and a subsequent reductive amination to achieve both secondary and tertiary amines.

Sustainable development of pharmaceuticals relies on the selection and integration of unified metrics and indicators. Herein, we present a standardized method to assess, report, and communicate environmental sustainability of development processes.

A novel approach utilizing the polymer-assisted grinding (POLAG) technique to facilitate the regioselective oxidative Heck coupling of aryl boronic acids with electronically unbiased olefins under solvent-free conditions was presented.

We herein report a waste-minimized process for the synthesis of iodinated hexa-aryl borazines in different iodination patterns and amounts.

Trametes versicolor's laccase (LacTV) was efficient catalyst in HMF oxidation to FDCA. Its use in an enzymatic and photocatalytic cascade process permitted a 40-fold increase in FDCA productivity compared to traditional enzymatic batch systems.

Herein, we demonstrate a solvent-free and cost-effective mechanochemical electrophilic thiocyanation of indoles and imidazo[1,2-a]pyridines and tandem double C–H activation leading to the formation of C-2 aryl and C-3 thiocyano indoles in a mixer-mill.

This work reports the analysis of 59 commercially available polymers from 20 different polymer classes for thermal properties, macrostructure, molecular mass distribution, and inorganic and organic additives, highlighting the need to characterize research polymers prior to recycling studies.

A hitherto unreported catalyst-free ring expansion reaction of tetrahydroisoquinolines with o-alkynylarylaldehydes for the construction of the dibenzo[b,d]azepine skeleton is described.

The structure of humins, a major side-product of carbohydrate biorefining, is complex and to a large extent unknown. A multitechnique characterization of an industrial humin provides new structural insights.

A new eco-friendly method was developed to synthesize rough surface, uniform particle size, and high heat-resistant fiber coating materials in water medium, achieving a remarkable enrichment capacity for trace pollutants in environmental water.

Five different M_w fractionated lignins were used to prepare five types of L-CQDs for general cell imaging and to clarify the effects of lignin M_w on the formation and properties of L-CQDs.

Ethanol-mediated reactive extraction is a green and simple process to simultaneously extract and functionalize lignin from wood. Ethoxy groups were incorporated in up to 40.8/100 Ar and the lignins were found suitable for adhesive formulations.

Three chemistry laboratories assess their 2019 carbon footprint. Purchases and energy are key emissions. Mitigation aims for a 40–50% global reduction by 2030, addressing all categories.

The stabilized amorphous Al₂O₃ phase stabilizes the Cu⁺ site through oxidation state control, thereby improving the selectivity and activity for the production of the C₂₊ product.

A novel copper-based biomass-carbon aerogel catalyst was prepared as a highly efficient and selective catalyst for maleimides reduction for the first time with excellent catalytic activity, chemo-selectivity, and recyclability.

This study thoroughly examines the role of mechanochemistry in organic synthesis by analysing the factors affecting the mechanochemical reduction process of unsaturated and oxidized compounds.

A cellulose bioreactor with dual-scale directional channels and a porous inner wall is reported for the continuous catalytic conversion of polydatin into resveratrol, which can achieve a high conversion rate of 98.58% of resveratrol within 2 h.