The stereoselective synthesis of a series of novel spiro-pyrrolidines and spiropyrrolizidines has been accomplished through an intermolecular 1,3-dipolar cycloaddition of an azomethine ylides with dipolarophiles derived from the Baylis-Hillman reaction of isatins with N-methyl maleimide.
一系列新型螺-
吡咯烷和螺
吡咯里西啶的立体选择性合成是通过偶氮甲碱叶立德的分子间 1,3-偶极环加成与源自
靛红与 N-甲基马来
酰亚胺的 Baylis-Hillman 反应的偶极亲和体来完成的。