反应详情

2.02 Parts of ethyl 2,2-dimethyl-3-(2',2'-dibromovinyl)-cyclopropane-carboxylate obtained in Example 11 was agitated with 7.06 parts of a 10% aqueous solution of potassium hydroxide in the presence of ethyl alcohol at 40° to 50° C. for 2 hours to effect hydrolysis of the ester and obtain 1.08 parts of 2,2-dimethyl-3-(2',2'-dibromovinyl)-cyclopropane-carboxylic acid having a melting point of 116° - 117° C.