有机化学 ›› 2002, Vol. 22 ›› Issue (11): 894-896. 上一篇    下一篇

研究论文

水介质中铈(Ⅲ)盐促进的炔烃二碘化反应

李金恒;谢叶香;尹笃林   

  1. 湖南师范大学化学化工学院精细催化合成研究所,长沙(410081)
  • 发布日期:2002-11-25

Diiodonation of alkynes in water promoted by Ce(II) salts

Li Jinheng;Xie Yexiang;Yin Dulin   

  1. Institute of Fine Catalysis and Synthesis, College of Chemistry and Chemical Engineering, Hunan Normal University,Changsha(410081)
  • Published:2002-11-25

在水介质中,利用铈(Ⅲ)盐为促进剂,高效、高产率地合成二碘烯烃.无论带 给电子基团的炔烃还是带吸电子基团的炔烃,在等摩尔量的硫酸亚铈存在下,二碘 化反应都取得满意的结果,而且此促进体系可重复使用,其效率不降低.

关键词: 水, 介质, 炔烃, 碘化反应, 促进剂, 烯烃

Trans-1,2-diiodoalkenes were produced efficiently in excellent yields by iodination of both electronrich and electron-deficient alkynes in the presence of Ce(III) salts and H_2O at room temperature.

Key words: diiodonation ;WATER;MEDIA;ALKYNE;IODINATION REACTION, ACCELERATORS;ALKENE

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