An efficient, stereoselective method for the synthesis of α-phosphonoenamines based on a modified Peterson olefination is described. The carbanion derived from isolatable intermediate 2 reacts with aromatic or aliphatic aldehydes selectively eliminating in Peterson fashion to deliver functionally rich α-phosphonoenamines 3. The synthetic utility of these enamines is demonstrated by their hydrolysis
描述了一种基于改进的彼得森烯化合成α-膦烯胺的有效的立体选择方法。衍生自可分离中间体2的碳负离子与芳族或脂族醛反应,以Peterson方式选择性地消除,从而生成功能丰富的α-膦烯胺3。这些烯胺的合成效用通过其
水解以良好的产率产生同源
羧酸来证明。