Stereoselective α-alkylation of α,β-unsaturated esters utilizing conjugate addition of nitrogen nucleophiles (R<sub>2</sub>NLi)
作者:Tadao Uyehara、Naoki Asao、Yoshinori Yamamoto
DOI:10.1039/c39870001410
日期:——
Treatment of α,β-unsaturatedesters (1) with lithium amides [LiNPri2 and LiN(CH2Ph)SiMe3] followed by alkylation and elimination of the amino groups produced trisubstituted enoates (2) with high stereoselectivity.
用酰胺化锂[LiNPr i 2和LiN(CH 2 Ph)SiMe 3 ]处理α,β-不饱和酯(1),然后烷基化并消除氨基基团产生具有高立体选择性的三取代烯酸酯(2)。