An Oxidative Mannich Cyclization Methodology for the Stereocontrolled Synthesis of Highly Functionalized Piperidines
作者:Xiao-Dong Wu、Seock-Kyu Khim、Xiaoming Zhang、Ericka M. Cederstrom、Patrick S. Mariano
DOI:10.1021/jo971706n
日期:1998.2.1
promoting Mannich cyclizations was first demonstrated by the preparation of methylidenepiperidines and -hydroazepines. Further studies have led to observations which show that Mannich cyclizations of stereochemically labeled alpha-silylamino vinylsilanes proceed to furnish tetrahydropyridines. Also, unlike their amine analogues, alpha-silylamido (E)-vinylsilanes undergo cyclization to produce tetrahydropyridines