cis-Dioxo-molybdenum(VI)-oxazoline complex catalyzed epoxidation of olefins by tert-butyl hydrogen peroxide

被引：64
作者：
Bagherzadeh, Mojtaba [1 ]
Tahsini, Laleh [1 ]
Latifi, Reza [1 ]
Woo, L. Keith [2 ]
机构：
[1] Sharif Univ Technol, Dept Chem, Tehran, Iran
[2] Iowa State Univ, Dept Chem, Ames, IA 50011 USA
来源：
INORGANICA CHIMICA ACTA | 2009年 / 362卷 / 10期
基金：
美国国家科学基金会;
关键词：
Molybdenum(VI)-oxazoline; TBHP; Catalytic epoxidation; Olefin; TRANSITION-METAL-COMPLEXES; OXAZOLINE LIGANDS; DIOXOMOLYBDENUM(VI) COMPLEXES; COORDINATION CHEMISTRY; MESOPOROUS SILICA; 2-(2'-HYDROXYPHENYL)OXAZOLINE LIGANDS; MOLYBDENUM(VI) COMPLEXES; ASYMMETRIC EPOXIDATION; EFFICIENT OXIDATION; CRYSTAL-STRUCTURE;
D O I：
10.1016/j.ica.2009.04.030
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A new efficient catalytic system was investigated for the epoxidation of various olefins by cis-dioxo-bis[2(2'-hydroxyphenyl)-oxazolinato]molybdenum(VI), cis-[ MoO(2)(phox)(2)], and TBHP as oxidizing agent. Using this system as catalyst for the oxidation of aliphatic substrates at 80 degrees 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. (C) 2009 Elsevier B. V. All rights reserved.
引用
收藏
页码：3698 / 3702
页数：5
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