Epoxidation of Olefins with Aqueous Hydrogen Peroxide in the Presence of Molybdenum Acetylacetonate-Bis (tri-n-butyltin) oxide
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概要
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The epoxidation of olefins with 28% aqueous hydrogen peroxide was investigated. A catalyst system composed of MoO_2 (acac)_2 and (n-Bu_3Sn)_2O selectively gave 72-12% yields of epoxides from olefins such as cyclohexene, styrene and 1-octene in an isopropyl alcohol solvent at 50℃ for 24 h. The epoxidation rates were first order with respect to cyclohexene and zero order with respect to H_2O_2. An apparent activation energy of 10 kcal・mol^<-1> and an entropy of activation of -53 eu. were obtained. MoO_2 (n-Bu_3SnO)_2 is proposed to be the active species for the epoxidation.
- 1983-04-25
著者
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井上 正美
Faculty Of Pharmaceutical Sciences Toyama Medical And Pharmaceutical University
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井上 正美
富山大 工
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渡辺 佳弘
Ishigaki-kiko Ltd.
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糸井 泰
Faculty of Pharmaceutical Sciences, Toyama Medical and Pharmaceutical University
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渡辺 佳弘
Central Research Laboratory, Sumitomo Chemical Co., Ltd.
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糸井 泰
荒川化学工業株式会社研究所
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