EFFICIENT METHODS FOR Z- OR CIS-SELECTIVE CROSS-METATHESIS
申请人:Hoveyda Amir H.
公开号:US20110245477A1
公开(公告)日:2011-10-06
The present invention generally relates to methods for performing metathesis reactions, including cross-metathesis reactions. Methods described herein exhibit enhanced activity and stereoselectivity, relative to known methods, and are useful in the synthesis of a large assortment of biologically and therapeutically significant agents.
Efficient methods for Z- or cis-selective cross-metathesis
申请人:Hoveyda Amir H.
公开号:US08552242B2
公开(公告)日:2013-10-08
The present invention generally relates to methods for performing metathesis reactions, including cross-metathesis reactions. Methods described herein exhibit enhanced activity and stereoselectivity, relative to known methods, and are useful in the synthesis of a large assortment of biologically and therapeutically significant agents.
Selective long-distance isomerization of terminal alkenes to silyl enol ethers proceeded via nondissociative chain walking using phenanthroline palladium catalysts. Notable features achieved taking advantage of the nondissociative chain walking mechanism include high efficiency obtained regardless of the chain length, high chemoselectivity toward terminal alkenes over internal ones, and retention of