Chemoselective Construction of Substituted Conjugated Dienes Using an Olefin Cross-Metathesis Protocol
作者:Timothy W. Funk、Jon Efskind、Robert H. Grubbs
DOI:10.1021/ol047929z
日期:2005.1.1
[Reaction: see text] Various substituted conjugated dienes have been made by olefin cross-metathesis. Using either electronic or steric "protection," one of the olefins of the conjugated diene was deactivated relative to the other for cross-metathesis. The reactions proceed with very high chemoselectivity and, when steric deactivation is used, very high diastereoselectivity.
[反应:见正文]通过烯烃交叉复分解制备了各种取代的共轭二烯。使用电子或空间“保护”,使共轭二烯的一种烯烃相对于另一种失活以进行交叉复分解。反应以非常高的化学选择性进行,并且当使用空间减活时,非常高的非对映选择性。