Copper Hydride-Catalyzed Tandem 1,4-Reduction/Alkylation Reactions
作者:Bruce H. Lipshutz、Will Chrisman、Kevin Noson、Patrick Papa、Joseph A. Sclafani、Randall W. Vivian、John M. Keith
DOI:10.1016/s0040-4020(00)00132-0
日期:2000.4
Exposure of an enone to a catalytic quantity of [CuH(PPh3)]6 in the presence of one of several silyl hydrides (PhMe2SiH, PMHS, HMe2SiOSiMe2H) leads to conjugate reduction with concomitant formation of the corresponding silyl enolether. Without isolation, treatment of these intermediates with a Lewis acid at low temperatures in the presence of an aldehyde, or with fluoride ion together with an activated