Themed collection Organic Collection: from theory to synthesis, from molecules to materials, catalysis and beyond

This review describes the recent development in organocatalytic conjugate addition of arenes and hetero-arenes to unsaturated Michael acceptors.

Advances of ionic liquids in chromatography, extractions, and mass spectrometry are reviewed.

The most recent advances in the field of steroidal supramolecular gels are reviewed. Moreover, the potential applications of the gels are highlighted.

This review reports the development of multicomponent reactions over the last 10 years.

This review covers representative examples of artificial carbohydrate receptors, which use noncovalent interactions for carbohydrate binding, with a focus on developments in receptor systems over the last two years.

The balance between stoichiometric (oxidative) and catalytic (dehydrogenic) coupling of element-H bonds is fundamentally reliant on the redox stability of the main group dehydrocoupling system employed, as can be concluded from recent developments in the area.

Bioelectrochemical systems enable production of energy from wastewater and biowaste, and find application in wastewater treatment, bioremediation and microbial electrosynthesis.

The Cucurbit[n]uril family of macrocycles has been generating some tremendous interest in the supramolecular community, because of the exceptional recognition properties of its members in aqueous medium. This review highlights the advances of the past six years in this blossoming field.

Asymmetric transformations catalyzed by bifunctional organocatalysts bearing an aromatic hydroxyl group and tertiary amine/phosphine moiety have been reviewed.

The potential of olefin metathesis reactions (RCM, RCEYM, CM) as efficient new strategy for the synthesis of piperidine-based iminosugars is examined. The title compounds are potent glycosidase inhibitors for treatment of viral and metabolic diseases.

Shown are corresponding SAR regions in alternative activity landscape representations.

This review illustrates recent progress in the organocatalytic enantioselective α-amination, α-hydroxylation, α-sulfenylation and α-halogenation reactions of active methines mediated by mono-, bi-, multi-functional organocatalysts, phosphoric acids and phase transfer catalysts.

A number of multicomponent reactions, homogeneous and heterogeneous acid and base catalyzed, are overviewed.

Iron catalysis has emerged as a powerful tool for synthetic chemistry. Here, recent advances in the iron-catalysed reduction of carbonyl compounds and olefins are reviewed and discussed.

The use of graphene to enhance the efficiency of photocatalysis has attracted much attention. This review is focused on the recent significant advances in the fabrication and applications of graphene-based hybrid photocatalysts.

A G-quadruplex-selective luminescent iridium(III) switch-on probe has been developed for the selective detection of Sr²⁺ ions in buffered solutions and sea water.

Cysteine was easily immobilized on a Fe₃O₄ surface and the catalyst successfully applied for the synthesis of β-amino carbonyls and hydroquinoline compounds.

A room temperature construction of isoquino[2,1-a][3,1]oxazine and isoquino[2,1-a]pyrimidine frameworks has been realized by means of visible light photocatalytic reactions.

A pair of enantiomorphs of cucurbit[5]uril with Dy³⁺ was obtained by total spontaneous resolution upon crystallization in the presence of achiral hydroquinone.

The light-to-electrical energy conversion efficiency of a black-dye-sensitized solar cell was improved by cosensitization with organic dyes, NKX-2553 or D131, and further enhanced by employing deoxycholic acid as a coadsorbent.

Highly effective palladium-catalyzed Heck-type arylation of acrylate with diaryliodonium salts has been developed, giving cinnamate in high yields without ligand and base.

A novel idoline dye, having dimethylfluorene-substituted indoline donor and dicyanovinylidene-introduced rhodanine acceptor (DN350), gave much higher efficiency than D205 due to bathochromic absorption band and prevention of aggregates formation.

Flower-like CuO microspheres show better catalytic performance in the Rochow reaction for dimethyldichlorosilane synthesis than commercial dense CuO microparticles.

The surface morphology and chemistry changes of activated carbon fibers (ACFs) caused by HNO₃ oxidation and steam explosion greatly increased the immobilization capacity of the ACFs to attach more bacteria for enhancing hydrogen production.

Solutions from Nature. Biodegradable and versatile chiral new deep eutectic solvents are produced by combining choline chloride with different hydrogen bond donors

Formyl groups at 6- and 2,6-positions initiate Knoevenagel reactions of the methyl groups at the 7, and 1,7-positions of 1,3,5,7-tetramethyl BODIPY dyes with aromatic aldehydes for making novel dyes for sensing or imaging applications.

A Pd-catalyzed highly regioselective diarylation of 9-allyl-9H-purine via chelation-assisted Heck reaction is developed. There were two different types of β-H in the allyl substrate, while the two aryl groups are exclusively introduced to the terminal of the olefins.

Organocatalytic asymmetric Henry reaction of isatins with nitromethane has been achieved with the use of a C₆′-OH cinchona alkaloid catalyst, affording 3-substituted 3-hydroxy-oxindoles in excellent yields and high enantioselectivities.

Highly sensitive and selective DNA detection using 2,3,7,8,12,13,17,18-octaethyl-21H,23H-porphine iron(III) chloride nanoparticles (FePNPs) as a novel fluorescent assay platform.

BODIPYs with intense visible-light absorption and long-lived T₁ excited states were prepared as organic triplet photosensitizers for triplet–triplet annihilation upconversion.

Functionalized pyrroles are synthesized for the first time via I₂-mediated MCR under metal free conditions.

Two click chemistry approaches were applied to macromolecular syntheses, namely a thiol-ene coupling to convert unsaturated plant oil derivatives into bifunctional monomers, and their Diels–Alder polycondensation to obtain thermoreversible materials.

Three new multi-carbazole derivatives (2C–4C) with a twisted and zigzag-shape structure were designed, synthesized and used as sensitizers for dye-sensitized solar cells (DSSCs).

Impressive selective cellular mitochondria staining of different cells line was achieved with novel fluorescent 2,1,3-benzothiadiazole derivatives.

In polar processes the bond-formation begins at the center with the highest spin density achieved through the charge transfer process.

The inhibitor 3-(1H-indol-3-ylthio)-N-(2-isopopoxy-6-methoxypyridin-3-yl)benzamide (CAB1) and its derivatives (CAB2-13) inhibit the LEDGF/p75-IN protein–protein interaction with moderate potency. These molecules are the first examples of SMPPIIs targeting LEDGF/p75 and not IN.

Shewanella haliotis ATCC 49138 was evaluated as a biocatalyst for bioaugmentation of anodic native microflora to enhance the electrogenic activity of microbial fuel cell (MFC).

Glutathione is an excellent chemical protector against a wide variety of free radicals, reacting exclusively by hydrogen transfer.

Molten urea serves both as a solvent and a reagent for the one-pot addition/cyclizations/fragmentation cascade which converts peri-alkynyl-9,10-anthraquinones into 2-R-7H-dibenzo[de,h]quinolin-7-ones – substituted analogues of Aporphinoid alkaloids.

In solutions of bromine salts of multiply charged imidazolium ion, charge-tagged N-heterocyclic carbenes are in equilibrium and are “fished” directly to the gas phase and characterized via electrospray ionization mass spectrometry.