取代苯基乙腈与氯乙酸钾反应 ,选择性地制得 3-氰基 -3-取代苯基丙酸 ,直接水解制得取代苯基丁二酸 ,5例收率82 .5 %～ 85 %。取代苯基丁二酸的简便合成@李伟 Substituted phenylacetonitrile with potassium chloroacetate, selectively prepared 3-cyano-3-substituted phenyl propionic acid, direct hydrolysis of substituted phenyl succinic acid, 5 cases yield 82.5% ~ 85% . Simple synthesis of substituted phenyl succinic acid @ Li Wei