cis - 3.3 - of 4 - (2 '- r amp; amp; darr; 1 amp; amp; darr; - 2' - r amp; amp; darr; 2 amp; amp; darr; vinyl) - cyclopropan - 1r - carboxylic acid 5 '- benzyl - 3' - furylmethylester, processes for their production and these compounds containing insecticides resources

摘要

Cis-3,3-dimethyl 2-(2'-R1, 2'-R2-vinyl) cyclopropane-1-carboxylic acid 5-benzyl 3-furylmethyl esters in their racemic form or 1R,2S or 1S,2R configuration. Where R1 is 1-6C alkyl, aryl or 7-9C aralkyl, R2 is 1-6C alkyl, aryl, 7-9C aralkyl or alkoxycarbonyl or R1 and R2 together with the adjacent C atom form an opt. satd. opt. substd. 3-7C ring are prepd. by esterifying an appropriate cyclopropane carboxylic acid or a deriv. thereof with 5-benzyl-3-furyl-methyl alcohol.