Conjugate addition of organocopper reagents to unsaturated esters
作者:Hiroshi Sakata、Isao Kuwajima
DOI:10.1016/s0040-4039(00)96823-0
日期:——
A combination of copper (I) trimethylsilylacetylide and chlorotrimethylsilane accelerates the conjugate addition of an alkyllithium to α, β-unsaturated esters to give the 1, 4-addition products in good yields.
A remarkable catalytic effect of Cu(II) species for conjugate addition of grignard reagents to α,β-unsaturated esters
作者:Hiroshi Sakata、Youji Aoki、Isao Kuwajima
DOI:10.1016/s0040-4039(00)88753-5
日期:——
In the presence of Me3Si-Cl, Cu(II) are not reduced by Grignard reagents but exhibit remarkable catalytic activity for their conjugateaddition to α,β-unsaturated esters.
Lewis acid mediated reactions of organocopper reagents. Entrainment in the conjugate addition to .alpha.,.beta.-unsaturated ketones, esters, and acids via the RCu.cntdot.BF3 system