VERFAHREN ZUR HERSTELLUNG VON CYANHYDRINCARBONSAEUREESTERN

• Main Author: FINDEISEN,KURT,.DR
• Format: Patent
• Language: German
• Published: 10.11.1983
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMISTRY; FISHING; FORESTRY; HETEROCYCLIC COMPOUNDS; HUMAN NECESSITIES; HUNTING; METALLURGY; ORGANIC CHEMISTRY; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING

Cyanohydrin carboxylates of the formula (I) in which R represents hydrogen, unsubstituted or halogen-, CN-, alkoxy- or alkoxycarbonyl-substituted alkyl or aryl, R represents hydrogen, unsubstituted or halogen-, CN-, alkoxy- or alkoxycarbonyl-substituted alkyl, cycloalkyl or alkenyl, and aryl or heteroaryl, and R and R together represent unsubstituted or halogen-, CN- or alkyl-substituted alkylene, R represents substituted or unsubstituted alkyl, cyaloalkyl, aryl or heteroaryl, are prepared by reacting acyl cyanides or O-acyltartrononitriles (dimeric acyl cyanides) or mixtures of the two compounds with aldehydes or ketones in the presence of anhydrous bases, if appropriate in the presence of diluents.