高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (6): 963.

• 研究简报 • 上一篇    下一篇

高分子负载钯基双金属催化苯胺氧化羰基化反应

万伯顺, 廖世健, 余道容   

  1. 中国科学院大连化学物理研究所, 大连 116023
  • 收稿日期:1998-07-27 出版日期:1999-06-24 发布日期:1999-06-24
  • 通讯作者: 廖世健
  • 作者简介:万伯顺,男,36岁,博士,副教授.
  • 基金资助:

    大连市科学技术委员会青年基金;中国科学院上海有机化学研究所金属有机开放实验室资助

Polymer-supported Palladium-based Bimetallic Catalysts for the Oxidative Carbonylation of Aniline

WAN Bo-Shun, LIAO Shi-Jian, YU Dao-Rong   

  1. Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, 116023
  • Received:1998-07-27 Online:1999-06-24 Published:1999-06-24

摘要: 芳香族氨基甲酸酯(ArNHCO2R)是制备芳基异氰酸酯(ArNCO)的重要中间体,其合成通常需用光气与芳胺反应,且生成大量HCl.因此,人们致力于发展一些无需光气参与的反应过程,如催化芳胺氧化羰基化生成芳氨基甲酸酯.

关键词: PVP-PdCl2-MnCl2双金属催化剂, 氧化羰基化反应, 协同效应, 苯氨基甲酸乙酯

Abstract: Polymer-supported bimetallic catalyst PVP-PdCl2-MnCl2[PVP=poly(N-vinyl-2-pyrrolidone] exhibits a high activity and selectivity for the oxidative carbonylation of aniline to carbamate ester under atmospheric pressure [v(CO)/V(O2)=10/1]. A remarkable bimetallic synergic effect in PVP-PdCl2-MXn(M: second transition metal) gives rise to an obvious increase in the conversion and selectivity for the reaction in the presence of a base(NaOAc). Among the Mcomponents tested, Mn-Pd exhibits the strongest synergic effect.

Key words: PVP-PdCl2-MnCl2bimetallic catalyst, Oxidative carbonylation, Synergic effect, Ethyl N-phenylcarbamate

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