New camphor-derived auxiliaries in methoxyselenylation and methoxybromination with opposite diastereofacial selectivity
作者:Tadao Ishizuka、Seigo Ishibuchi、Takehisa Kunieda
DOI:10.1016/s0040-4039(00)99269-4
日期:1989.1
Methoxyselenylation and methoxybromination of chiral 3-acyl-2-oxazolones with PhSeCl/MeOH and Br2/MeC(OMe)3 smoothly proceed to result in highly stereoselective formation of chiral synthons for β-amino alcohols, but with opposite π-facial selectivity.
用PhSeCl / MeOH和Br 2 / MeC(OMe)3进行手性3-酰基-2-恶唑酮的甲氧基硒基化和甲氧基溴化反应平稳进行,导致β-氨基醇的手性合成子高度立体选择性形成,但π面选择性相反。