Synthesis of enantiopure pyrrolidine and piperidine derivatives via ring closing metathesis
作者:Ramaiah Kumareswaran、Thiagarajan Balasubramanian、Alfred Hassner
DOI:10.1016/s0040-4039(00)01423-4
日期:2000.10
The additions of lithiated allylsulfone carbanion to chiral N-sulfinylimines were found to proceed with good to excellent selectivity. The resulting intermediates 4a-d after transformation to dienylamides 7a-d and 16a-d, were converted to functionalized enantiopure piperidines and pyrrolines, respectively, via ring closing metathesis (RCM). (C) 2000 Elsevier Science Ltd. All rights reserved.