申请人:Bayer Aktiengesellschaft
公开号:US04332745A1
公开(公告)日:1982-06-01
A process for the preparation of a 2-cyano-3,3-dimethyl-cyclopropane-1-carboxylic acid ester of the formula ##STR1## in which R is optionally substituted alkyl, comprising reacting a 3-halogeno-3-cyano-2,2-dimethyl-propane-1-carboxylic acid ester of the formula ##STR2## in which X is halogen, with a base at a temperature from about 0 to 100.degree. C. The starting esters are new and may be prepared by halogenating a compound of the formula ##STR3## and decarboxylating.
一种制备式为##STR1##的2-氰基-3,3-二甲基环丙烷-1-羧酸酯的方法,其中R是可选的取代基烷基,包括在约0至100℃温度下,将式为##STR2##的3-卤代-3-氰基-2,2-二甲基丙烷-1-羧酸酯(其中X是卤素)与碱反应。起始酯是新的,可以通过卤代式为##STR3##的化合物并脱羧制备。