反应详情

The procedure of Example 15 was employed utilizing ethyl-2-(4-toluyl)-3-dimethylaminopropenoate in lieu of ethyl-2-benzoyl-3-dimethylaminopropenoate to yield ethyl-5-(4'-methylphenyl)-4-isoxazolecarboxylate (2.03 g.; 59% yield) having a melting point of 42°-44° C. and the following analysis: