化学学报 ›› 1987, Vol. 45 ›› Issue (2): 204-207. 上一篇    下一篇

研究论文

α-卤代酮在银粉作用下的反应

胡宏纹;陈伟兴;陶明;高济宇   

  1. 南京大学化学系
  • 发布日期:1987-02-15

Reaction of \a-haloketones with silver powder

HU HONGWEN;CHEN WEIXING;TAO MING;GAO JIYU   

  • Published:1987-02-15

研究了用银粉和碘化钾在无水丙酮中处理α-溴代乙酰苯酮及其环取代衍生物.反应结果得到α,β-环氧酮,1,2,3-三苯酰基环丙烷,2,4-二苯基呋喃,1,4-二酮类及其它产品,并用柱色谱分离,α-溴代乙酰苯酮与芳香醛和1,4-二苯基丁烯-2-二酮-1,4的反应也被研究了.

关键词: 环氧化反应, 反应机理, 银, 碘化钾, 呋喃 P, 环丙烷 P, 苯乙酮 P, 卤代烃, 丁二酮 P, 苯酰基

a-Bromoacetophenone and its ring-substituted derivatives were treated with silver powder and KI in anhydrous acetone to give a mixture of a,b-epoxy ketone, 1,2,3-triaroylcyclopropane, 2,4-diarylfuran, 1, 4-diketone and other products separated by column chromatog. The reaction of a-bromoacetophenone with PhCHO and 1,4-diphenylbut-2-en-1,4-dione in the presence of silver powder and KI in acetone gave epoxyketone I and cyclopropane II resp.

Key words: EPOXIDATION REACTION, REACTION MECHANISM, SILVER, POTASSIUM IODIDE, FURAN P, CYCLOPROPANE P, ACETOPHENONE P, HALOHYDROCARBON, BUTANEDIONE P, BENZOYL GROUP

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