ZSM-5-SO3H as a novel, efficient, and reusable catalyst for the chemoselective synthesis and deprotection of 1,1-diacetates under eco-friendly conditions

被引:36
|
作者
Massah, Ahmad Reza [1 ,2 ]
Kalbasi, Roozbeh Javad [1 ,2 ]
Shafiei, Anahita [1 ]
机构
[1] Islamic Azad Univ, Dept Chem, Shahreza Branch, Shahreza 86145311, Isfahan, Iran
[2] Islamic Azad Univ, Razi Chem Res Ctr, Shahreza Branch, Shahreza 86145311, Isfahan, Iran
来源
MONATSHEFTE FUR CHEMIE | 2012年 / 143卷 / 04期
关键词
1,1-Diacetate; Solvent-free; ZSM-5-SO3H; Chemoselectivity; Aldehydes; Protection; SILICA SULFURIC-ACID; GEMINAL DIACETATES ACYLALS; SOLVENT-FREE; RECYCLABLE CATALYST; HETEROGENEOUS CATALYST; N-ACYLSULFONAMIDES; ALDEHYDES; ACETYLATION; ALCOHOLS; MILD;
D O I
10.1007/s00706-011-0646-8
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
ZSM-5 has been modified as supported sulfuric acid (ZSM-5-SO3H) and introduced for the first time as a mild, convenient, reusable, and heterogeneous catalyst. Various types of aldehydes were efficiently converted to their 1,1-diacetates using a catalytic amount of ZSM-5-SO3H in excellent yields under solvent-free and heterogeneous conditions at room temperature. The deprotection of 1,1-diacetates has also been achieved using this novel catalyst in ethanol. The procedure is operationally simple, environmentally benign, and only a stoichiometric amount of anhydride is used.
引用
收藏
页码:643 / 652
页数:10
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