Microwave-assisted and light-induced catalytic ring opening of α-epoxyketones using DDQ

被引：6
|
作者：
Memarian, H. R. [1 ]
Saffar-Teluri, A. [1 ]
机构：
[1] Univ Isfahan, Fac Sci, Dept Chem, Catalyst Div, Esfahan 81746, Iran
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2007年 / 274卷 / 1-2期
关键词：
ring opening; alpha-epoxyketones; microwave; cyclic voltammetric; conductometric;
D O I：
10.1016/j.molcata.2007.05.010
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ring opening reaction of (alpha-epoxyketones in the presence of 2,3-dichloro-5,6-dicyano-1,4-benzoquinone in methanol solution under microwave and UV irradiations resulted in the formation of alpha-hydroxy-beta-methoxyketones through C-beta-O bond cleavage in excellent yields. Whereas the nature and location of the additional substituent affect the rate of ring opening, microwave irradiation remarkably raised the rate of reactions compared with UV-light. Cyclic voltammetric and conductometric studies supported these experimental results. (C) 2007 Published by Elsevier B.V.
引用
收藏
页码：224 / 230
页数：7
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