Intramolecular Conjugate Addition of Alkenyl and Aryl Functions to Enones Initiated by Lithium−Iodine Exchange
作者:Edward Piers、Cristian L. Harrison、Carlos Zetina-Rocha
DOI:10.1021/ol016288u
日期:2001.10.1
[GRAPHICS]Treatment of each of the substrates 20-26, 29, and 46-48 with t-BuLi in THF, in the presence of HMPA and TMSCl, provides good-to-excel lent yields of the intramolecular conjugate addition products 30-36, 37, and 49-51, respectively.