Alkali-Metal Salts of Aromatic Carboxylic Acids: Liquid Crystals without Flexible Chains

Single Crystals of Alkali-aromatic Ion Pairs

Microbial reduction of aromatic carboxylic acids.

Several benzoic, cinnamic and phenylacetic acid derivatives were screened with 20 micro-organisms, mainly fungi, for the reduction of their carboxylic function. For all organisms several compounds were reduced in fairly good yields up to 80% to the corresponding alcohol. No general rule could be established, concerning the substitution pattern, as to which compounds were transformed to the alco...

Decarboxylative homocoupling of (hetero)aromatic carboxylic acids.

A variety of hetero(aromatic) carboxylic acids are shown to undergo decarboxylative homocoupling, mediated by a Pd/Ag system. This novel methodology for the synthesis of symmetrical biaryls avoids the use of haloarenes and organometallic compounds as starting materials.

Effects of alkali metal halide salts on the hydrogen bond network of liquid water.

Measurements of the oxygen K-edge X-ray absorption spectrum (XAS) of aqueous sodium halide solutions demonstrate that ions significantly perturb the electronic structure of adjacent water molecules. The addition of halide salts to water engenders an increase in the preedge intensity and a decrease in the postedge intensity of the XAS, analogous to those observed when increasing the temperature ...

Antimicrobial activity of some higher amine salts of carboxylic acids.

Various higher amine salts of dicarboxylic and tricarboxylic acids were prepared and tested for antimicrobial activity in vitro. Although activity was present in all compounds tested, tetradecylammonium malonate showed the greatest activity with the widest spectrum. This compound was effective against gram-negative as well as gram-positive microorganisms, yeast, and fungi.A high order of microb...