高等学校化学学报

高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (10): 1624.

• 论文 • 上一篇    下一篇

铑(Ⅰ)催化有机汞化合物偶联反应机理的研究

王玉兰1, 吴养洁2, 蔡孟深1, 尹应哲1   

  1. 1. 北京医科大学药学院生物有机化学系, 北京 100083;
    2. 郑州大学化学系, 郑州 450052
  • 收稿日期:1996-10-03 出版日期:1997-10-24 发布日期:1997-10-24
  • 通讯作者: 吴养洁.
  • 作者简介:王玉兰, 女, 41岁, 博士后.

Studies on the Mechanism of Dimerization of Organomercuric Compounds by Rhodium(Ⅰ)

WANG Yu-Lan1, WU Yang-Jie2, CAI Meng-Shen1, YIN Ying-Zhe1   

  1. 1. School of Pharmaceutical Sciences, Beliing Medical University, Department of Chemistry;
    2. Zhengzhou University, Zhengzhou 450052
  • Received:1996-10-03 Online:1997-10-24 Published:1997-10-24

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被引次数

3

摘要： 研究了β-氯化萘汞在[CIRh(CO)2]2催化下于六甲基磷酰胺溶液中的偶联反应动力学,证明其反应为二级,求得了偶联反应动力学常数.α-氯化萘汞和α-溴汞代苯乙酸乙酯在相同的反应条件下不发生偶联反应;在α一溴汞代苯乙酸乙酯的偶联反应条件下分离和鉴定了有机铑(I)中间体,根据所提出的反应机理,对上述现象进行了讨论.

关键词: 氯化萘汞, 铑催化偶联反应, 动力学

Abstract: The kinetics of dimerlzation of β-naphthylmercuric chloride in the presence of[CIRh (CO)2]2 has been studied in hexamethylphosphoramide. The dimerization has beenfound to be second order and the kinetic parameters of the dimerization have been reported.Both α-naphthylmercuric chloride and α-bromomercuriphenylacetate have not beendimerizated under the same reaction conditions, which has been explained on the basis of the proposedmechanism. The organic rhodium (I) intermediate formed in the α-bromonercuriphenylacetate case was isolated and identified.

Key words: Naphthylmercuric chloride, Rhodium(Ⅰ) catalyzed dimerization, Kinetics

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