Enyne Cross-Metathesis with Strained, Geminally-Substituted Alkenes: Direct Access to Highly Substituted 1,3-Dienes
摘要:
Angle strain in methylene cyclobutane was used to drive a cross-enyne metathesis with 1-alkynes, giving 1,1,3-trisubstituted 1,3-dienes in good isolated yields. An extensive survey of Grubbs' second-generation catalysts led to an optimized reaction conducted at 0 degrees C.
Enyne Cross-Metathesis with Strained, Geminally-Substituted Alkenes: Direct Access to Highly Substituted 1,3-Dienes
作者:Daniel A. Clark、Brenda S. Basile、William S. Karnofel、Steven T. Diver
DOI:10.1021/ol802007q
日期:2008.11.6
Angle strain in methylene cyclobutane was used to drive a cross-enyne metathesis with 1-alkynes, giving 1,1,3-trisubstituted 1,3-dienes in good isolated yields. An extensive survey of Grubbs' second-generation catalysts led to an optimized reaction conducted at 0 degrees C.