SIOC English
化学学报
高级检索

化学学报 ›› 1990, Vol. 48 ›› Issue (6): 577-581. 上一篇    下一篇

研究论文

二碘化钐在脱氧、还原和碳-碳键形成反应中的应用

张永敏;林荣辉;刘田春   

  1. 杭州大学化学系
  • 发布日期:1990-06-15

Some application of samarium diiodide in deoxygenation reduction and carbon-carbon bond formation reaction

ZHANG YONGMIN;LIN RONGHUI;LIU TIANCHUN   

  • Published:1990-06-15

PDF

652

本文研究了二碘化钐对一些有机化合物的脱氧反应, 以及它在醇存在下对α-卤代酮、偶氮苯和苯醌的还原反应。首次报道了在二碘化钐作用下α-卤代酮与醛之间的碳-碳键形成瓜在, 高产率地制备了各种α,β-不饱和酮; 同时提出了涉及由α-卤代酮同时与Sm(II)和Sm(III)/I^-物种作用形成烯醇钐盐中间体的可能机理。

关键词: 吡啶 P, 反应机理, 碘化物, 苯乙酮, 苯偶氮化合物, 苯醌, 卤代烃, 还原反应, 苯甲醛, 脱氧

The deoxygenation and reduction of some organic substrates with samarium diiodide were investigated. The carbon-carbon bond formation between a-bromoacetophenone (I), and benzaldehydes promoted by samarium diiodide was first reported. A possible mechanism involving samarium(III) enolate intermediate formed in situ from I with both Sm(II) and Sm(III)/I- species was proposed.

Key words: PYRIDINE P, REACTION MECHANISM, IODIDE, ACETOPHENONE, BENZENE AZO COMPOUNDS, BENZOQUINONE, HALOHYDROCARBON, REDUCTION REACTION, BENZALDEHYDE, DEOXIDIZATION

中图分类号: