1-substituted vinamidinium salts with sarcosine ethyl ester produced 2,3-disubstituted pyrroles; a similar reaction with glycine ethyl ester gave 2,5-disubstituted pyrroles. Reactions of related three-carbon synthons with sarcosine and glycine were studied under basic, neutral and acidic conditions which demonstrated the utility of these derivatives for the regiocontrolled preparation of disubstituted pyrroles
1-取代的
乙烯基ami盐与
肌氨酸乙酯的反应生成2,3-二取代的
吡咯;与甘
氨酸
乙酯的类似反应得到2,5-二取代的
吡咯。在碱性,中性和酸性条件下研究了相关的三碳合成子与
肌氨酸和甘
氨酸的反应,证明了这些衍
生物可用于区域控制的二取代
吡咯的制备。