.alpha.'-Functionalization of .beta.,.gamma.-unsaturated cyclohexenones. Utilization of silyl enol ethers produced from the lithium/ammonia reduction of silyl aryl ethers
Asymmetric 1,4-reductions of and 1,4-additions to enoates and related systems
申请人:——
公开号:US20030125563A1
公开(公告)日:2003-07-03
One aspect of the present invention relates to methods for the transition-metal-catalyzed asymmetric 1,4-addition of a nucleophile, e.g., hydride, to cyclic and acyclic enoates and enones. In certain embodiments of the methods of the present invention, the transition metal catalyst consists essentially of copper and an asymmetric bidentate bisphosphine ligand.