METHOD FOR PREPARING AMINONITRILE, ENHANCING YIELD AND/OR SELECTIVITY BY AMINONITRILE AND CATALYTIC COMPOSITION Russian patent published in 2006 - IPC C07C253/30 C07C255/24 B01J23/00 

FIELD: organic chemistry, chemical technology, catalysts.

SUBSTANCE: invention relates to a method for synthesis of aminonitrile from corresponding dinitrile. Method involves contacting dinitrile of the general formula R(CN)₂ wherein R means alkylene group comprising from 2 to 25 carbon atoms with hydrogen-containing medium in the presence of a solvent, hydrogenation catalyst and an additive comprising tetralkyl ammonium cyanate for enhancing yield and/or selectivity by aminonitrile as the end product. Also, invention relates to the catalyst composition used in hydrogenation of dinitrile to aminonitrile comprising the combination (1) of the hydrogenation catalyst useful for hydrogenation of dinitrile of the general formula R(CN)₂ wherein R means alkylene group comprising from 2 to 25 carbon atoms to aminonitrile, and (2) additive comprising compound of tetraalkyl ammonium cyanate.

EFFECT: improved method of synthesis.

15 cl, 10 ex