Stereodivergent Diversity Oriented Synthesis of Piperidine Alkaloids
作者:Louis V. Adriaenssens、Carolyn A. Austin、Mairi Gibson、David Smith、Richard C. Hartley
DOI:10.1002/ejoc.200600744
日期:2006.11
synthesis of 2-substituted piperidines and rapid access to multiple cyclic imines using solid phase synthesis (SPS). The Schrock carbenes, generated by reduction of thioacetals, convert resin-bound esters into enol ethers. Treatment with acid releases amino ketones that are cyclized with TMSCl to give iminium salts. Reduction introduces a chiral centre at C-2, whose absolutestereochemistry is determined