Conjugate addition of benzyl copper reagents to α,α-enoates and -enones.
作者:Pieter S. Van Heerden、Barend C.B. Bezuidenhoudt、Jacobus A. Steenkamp、Daneel Ferreira
DOI:10.1016/s0040-4039(00)74218-3
日期:1992.4
Several benzylic copper reagents, BnCu(CN)MgCl, Bn2CuMgCl, BnCu-TMSCl-HMPA, and BnCu-TMSCl-TMEDA, facilitate the conjugate addition of the benzyl ligand to α,β-enones, but only BnCu-TMSCl-TMEDA gave high yields with α,β-unsaturated esters.
几种苄基铜试剂BnCu(CN)MgCl,Bn 2 CuMgCl,BnCu-TMSCl-HMPA和BnCu-TMSCl-TMEDA有助于将苄基配体共轭添加到α,β-烯酮中,但仅有助于BnCu-TMSCl-TMEDA用α,β-不饱和酯可得到高产率。