Chiral framework: Chiral amines with pyrrolidine frameworks catalyze the enantioselective conjugate addition of a wide range of aldehydes to various vinyl sulfones and vinyl phosphonates in high yields and with enantioselectivities up to >99 % ee (see scheme). The high versatility of the Michael adducts is exemplified by various functionalizations with conservation of the optical purity.
手性骨架:具有
吡咯烷骨架的手性胺可高产率地催化多种醛的对映选择性共轭加成反应,生成各种
乙烯基砜和
膦酸乙烯酯,对映选择性高达> 99%ee(参见方案)。迈克尔加合物的高通用性可以通过各种官能化以及光学纯度的保留来举例说明。