Polymer-bound palladium-catalyzed coupling of allylic alcohols with hypervalent iodonium salts
作者:Su-Bum Jang
DOI:10.1016/s0040-4039(97)00921-0
日期:1997.6
The polymer-bound palladium-catalyzed cross-coupling reaction of allylic alcohols with hypervalent iodonium salts to form carbon-carbon bonds was achieved at room temprature under extremely mild and aqueous conditions even in the absence of base with very high activity in the Stille coupling reaction. The polymeric catalyst can be easily separated from a reaction mixture and reused more than 10 times
Efficient asymmetric syntheses of both naturally occurring and non-naturally occurring enantiomers of gonioheptolide A are reported. The absolute configuration of (+)-gonioheptolide A was established by NOESY, Mosher ester analysis, and comparison with the specific rotation of the isolated (+)-gonioheptolide A.