SCHULTZ, ARTHUR G.;MACIELAG, MARK;SUNDARARAMAN, PADMANABHAN;TAVERAS, ARTH+, J. AMER. CHEM. SOC., 110,(1988) N 23, C. 7828-7841
作者:SCHULTZ, ARTHUR G.、MACIELAG, MARK、SUNDARARAMAN, PADMANABHAN、TAVERAS, ARTH+
DOI:——
日期:——
The Enantioselective Birch−Cope Sequence for the Synthesis of Carbocyclic Quaternary Stereocenters. Application to the Synthesis of (+)-Mesembrine
作者:Tapas Paul、William P. Malachowski、Jisun Lee
DOI:10.1021/ol0615228
日期:2006.8.1
A synthetic technique for generating carbocyclic quaternary stereocenters with exceptionally high levels of enantioselectivity is described. A sequence of three reactions, enantioselective Birch reduction-allylation, enol ether hydrolysis, and Cope rearrangement, is used to stereoselectively generate chiral quaternary centers on a 2-cyclohexen-1-one ring. The products of the sequence are 4,4-disub