A novel approach to 2-substituted-2-(dimethoxyphosphoryl)-pyrrolidines 7a–7o and 9a–9r has been developed, which features a TMSOTf-mediated one-pot intramolecular cyclization and phosphonylation of substituted tert-butyl 4-oxobutylcarbamates. The major advantages of this method include simple operation under mild reaction conditions, the use of cheap Lewis acid, and good to excellent yields with high
已经开发了一种2-取代-2-(二甲氧基
磷酰基)-
吡咯烷7a - 7o和9a - 9r的新方法,其特点是 TMSOTf 介导的单锅分子内环化和取代的4-氧代丁基
氨基甲酸叔丁基酯的膦酰化。该方法的主要优点包括在温和的反应条件下操作简单,使用廉价的
路易斯酸,产率高,非对映选择性高(dr高达 99:1)。