Tandem Enyne Allene−Radical Cyclization: Low-Temperature Approaches to Benz[<i>e</i>]indene and Indene Compounds
作者:Janet Wisniewski Grissom、Detlef Klingberg、Dahai Huang、Brian J. Slattery
DOI:10.1021/jo961049j
日期:1997.2.1
multicyclic compounds using the tandem enediyne-radical cyclization, we have developed the tandem enyne allene-radical cyclization which proceeds at temperatures as low as 37 degrees C. The reactions were carried out using three different methods for the preparation of the enyne allenes. The first method involved the [3,3] sigmatropic rearrangement of an enediyne followed by a tandem enyne allene-radical