A stable 1:1 lithium acylcyanocuprate. Dependence of the stability of acylcyanocuprates on the nature of the alkyl substituent.
作者:Dietmar Seyferth、Richard C. Hui
DOI:10.1016/s0040-4039(00)84288-4
日期:1986.1
Acylcuprates obtained by carbonylation of R(CN)CuLi cuprates (R = t-Bu, sec-Bu) at low temperature are effective in the directnucleophilic1,4-acylation of α,β-unsaturated ketones and aldehydes. The R = t-Bu reagent is sufficiently stable so that it can be used even at room temparature. The R = sec-Bu reagent is best used at −110°C.