高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (4): 574.

• 研究简报 • 上一篇    下一篇

温控相转移配体及催化(Ⅴ)——单,双-对聚氧乙烯基三苯基膦的合成及其催化性能研究

郑晓来, 陈瑞芳, 金子林   

  1. 大连理工大学化工学院精细化工国家重点实验室, 大连, 116012
  • 收稿日期:1997-01-18 出版日期:1998-04-24 发布日期:1998-04-24
  • 通讯作者: 金子林
  • 作者简介:郑晓来,男,26岁.博士研究生.
  • 基金资助:

    国家自然科学基金;中国石化总公司基金

Thermoregulated Phase transfer Ligands and Catalysis(Ⅴ) ——Synthesis and Catalytic Properties of Mono and Di p polyoxyethylene Substituted Triphenylphosphines

ZHENG Xiao-Lai, CHEN Rui-Fang, JIN Zi-Lin   

  1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116012
  • Received:1997-01-18 Online:1998-04-24 Published:1998-04-24

关键词: 单, 双-对聚氧乙烯基三苯基膦, 乙氧基化, 氢甲酰化, 温控相转移催化

Abstract: Mono- and di-p-polyoxyethylene substituted triphenylphosphines(1) were prepared by the ethoxylation of diphenyl(4-hydroxyphenyl)phosphine and phenyldi(4-hydroxyphenyl)phosphine. RhCl3/1 complexes have desirable catalytic properties in aqueous/organic biphasic hydroformylation of 1-hexene, with a conversion up to 95%, and can be reused for 5 times without loss in activity. Since ligands 1 possess inverse temperature-dependent solubility in water, the hydroformylation has undergone an interesting process of thermoregulated phase-transfer catalysis, in which the catalyst transfers into the organic phase to catalyze the reaction at a higher temperature, and returns to the aqueous phase to be separated from the product at a lower temperature after the reaction is completed.

Key words: Ethoxylation, Hydroformylation, Thermoregulated phase-transfer catalysis, Mono- and di-p-polyoxyethylene substituted triphenylphosphines

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