Glycolates or glycinates derived from diversely substituted secondary cyclopropenylcarbinols have been involved for the first time in an Ireland–Claisen rearrangement. This reaction allows an efficient and stereoselective access to highly functionalized alkylidenecyclopropanes possessing an α-hydroxy or α-amino acid subunit, which in turn are valuable precursors of substituted cyclopropanes by diastereoselective
来自不同取代的仲环
丙烯基羰基醇的
乙醇酸酯或甘
氨酸酸酯首次涉及到爱尔兰-克莱森重排。该反应允许有效和立体选择性地获得具有α-羟基或
α-氨基酸亚基的高度官能化的亚烷基
环丙烷,其通过环外烯烃的非对映选择性加氢而成为取代的
环丙烷的有价值的前体。