反应详情

1.80 Parts of ethyl 2,2-dimethyl-3-(2',2'-dichlorovinyl)-cyclopropane-carboxylate prepared in the same manner as in Example 1 was agitated at 40° to 50° C. for 3 hours in the presence of 8.65 parts of a 10% solution of potassium hydroxide and methanol to effect hydrolysis of the ester and obtain 1.43 parts of 2,2-dimethyl-3-(2',2'-dichlorovinyl)-cyclopropane-carboxylic acid, the data of the melting point and NMR spectrum of which were in agreement with the data described in Example 4.