cis-Dioxo-molybdenum(VI)-oxazoline complex catalyzed epoxidation of olefins by tert-butyl hydrogen peroxide |
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| Authors: | Mojtaba Bagherzadeh Laleh Tahsini L Keith Woo |
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| Institution: | a Chemistry Department, Sharif University of Technology, Tehran P.O. Box 11155-3516, Iran
b Chemistry Department, Iowa State University, Ames, IA 50011-3111, USA |
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| Abstract: | A new efficient catalytic system was investigated for the epoxidation of various olefins by cis-dioxo-bis2-(2′-hydroxyphenyl)-oxazolinato]molybdenum(VI), cis-MoO2(phox)2], and TBHP as oxidizing agent. Using this system as catalyst for the oxidation of aliphatic substrates at 80 °C gives the epoxide as the sole product with yields up to 100% and turnover frequency up to 5000 h−1. The efficiency of the catalyst is strongly influenced by the nature of solvent, reaction time and temperature, and a significant increase in the epoxide yields is observed in higher temperatures and longer reaction times. |
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| Keywords: | Molybdenum(VI)-oxazoline TBHP Catalytic epoxidation Olefin |
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