有机化学 ›› 1995, Vol. 15 ›› Issue (2): 186-193. 上一篇    下一篇

研究论文

γ-手性顺式的共轭烯醛与有机锂化合物的立体选择性反应

王钒   

  1. 江苏石油化工学院应用化学系
  • 发布日期:1995-04-25

Diastereoselective reactions of chiral γ-amino Z-enals with organolithium compounds

WANG FAN   

  • Published:1995-04-25

本文研究了在手性的顺式-γ-氨基-α,β-不饱和醛(7)与有机锂化合物的亲核加成反应中的1,4-不对称诱导效应.结果表明: 7与α-烷氧基乙烯醇锂类化合物的反应导致了优良的非对映立体选择性(d.e. : 60~90%), 而与烷基锂试剂的反应也给出了高度的立体选择性(d.e.: 74~86%). 这说明在这些反应中 , 存在着一种1,4-不对称诱导反应 .

关键词: 共轭双键化合物, 烯醛, 立体选择性, 不对称诱导, 有机锂化合物, 顺式化合物

The possibility of 1,4-asymmetric induction in some nucleophilic addition reactions of chiralγ-amino Z-enals 7 with organolithium compounds was investigated. The reactions of lithium enolates with 7 led to good diastereoselectivities (d.e.: 60~90%), and high level of diadtereoselectiveties (d.e.: 74~86%) was also observed in the corresponding reactions of alkyllithium. This means that a novel remote 1,4-asymmetric induction results in these reactions.

Key words: CONJUGATED DOUBLE BOND COMPOUNDS, STEREOSELECTIVITY, OLEFINE ALDEHYDE, ORGANO LITHIUM COMPOUNDS, ASYMMETRY INDUCTION, CIS-FORM COMPOUNDS

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