反应详情

The procedure of Example 22 was employed utilizing ethyl-2-(2'-methylbenzoyl)-3-dimethylaminopropenoate in lieu of ethyl-2-(2'-chlorobenzoyl)-3-dimethylaminopropenoate to yield ethyl-5-(2'-methylphenyl)-4-isoxazolecarboxylate (1.9 g.; 82.6% yield) as an oil having the following analysis: