The synthesis of alkyl boronic esters by direct decarboxylative radical addition of carboxylic acids to vinyl boronic esters is described. The reaction proceeds under mild photoredox catalysis and involves an unprecedented single-electron reduction of an α-boryl radical intermediate to the corresponding anion. The reaction is amenable to a diverse range of substrates, including α-amino, α-oxy, ...

Condensat ion of chlorides of subs t i tu ted pyrazine-2-carboxylic acids with r ing-subst i tu ted anilines yielded a series of anilides of 6-chloropyrazine-2-carboxylic, 5-( l , l -d imethyle thyl)pyrazine-2carboxylic or 6-chloro-5-(l , l-dimethylethyl)pyrazine-2-carboxylic acids. P r o d u c t s were tes ted for their ant imycobacterial , antifungal, and photosynthesis-inhibit ing activity. ...

A silver-containing hybrid material is reported as a heterogeneous noble metal catalyst for protodecarboxylations and decarboxylative deuterations of carboxylic acids.

Quinoline and naphthalene-based fluororeceptors 1 and 2 have been designed and synthesized for detection of hydroxy carboxylic acids in less polar solvents. The receptor 1 shows monomer emission quenching followed by excimer emission upon hydrogen bond-mediated complexation of carboxylic acids. The excimer emission distinguishes aromatic dicarboxylic acids from aliphatic dicarboxylic acids and ...

Full title of the article INTERACTIONS OF AMMONIUM SMECTITE WITH LOW MOLECULAR WEIGHT CARBOXYLIC ACIDS Shortened title NH4-CLAY-CARBOXYLIC ACIDS INTERACTION Authors M. GAUTIER, F. MULLER, J.-M. BENY, L. LE FORESTIER, P. ALBERIC, P. BAILLIF Address CNRS/INSU, Institut des Sciences de la Terre d’Orléans (ISTO), Université d’Orléans-Université de Tours, 1A rue de la Férollerie, 45071 Orléans Cedex...

The structure of ferrofluids (magnetite in decahydronaphtalene) stabilized with saturated mono-carboxylic acids of different chain lengths (lauric, myristic, palmitic and stearic acids) is studied by means of magnetization analysis and small-angle neutron scattering. It is shown that in case of saturated acid surfactants, magnetite nanoparticles are dispersed in the carrier approximately with t...

By the reaction of furan-2-carboxylic acids and furfural with diazonium salts 1a-j arylfuran-2-carboxylic 4a-e 5-arylfuran-2-carbaldehydes 5a-f were synthesized. Acids transformed into appropriated acylchlorides 6a-e used for preparation 4-(5-aryl-2-furoyl)morpholines 7a-e . 4-[(5-Aryl-2-furyl)carbonothioyl]morpholines 8a-f prepared from aldehydes by using Willgerodt-Kindler reaction. The struc...

Acetyl coenzyme A synthetase (EC 6.2.1.1) has been examined for its ability to accept various carboxylic acids as substrates in place of acetic acid. The activity of the enzyme with these substrates was monitored using a coupled enzyme assay and high pressure liquid chromatography (HPLC) analysis. Short chain carboxylic acids were found to be active including: propionic, acrylic, fluoroacetic, ...

Carboxylic acids are ubiquitous in bio-renewable and petrochemical sources of carbon. Hydrogenation of carboxylic acids to yield alcohols produces water as the only byproduct, and thus represents a possible next generation, sustainable method for the production of these alternative energy carriers/platform chemicals on a large scale. Reported herein are molecular insights into cationic mononucl...