Tetra-methyl ammonium hydroxide:: An efficient and versatile catalyst for the one-pot synthesis of tetrahydrobenzo[b]pyran derivatives in aqueous media

被引：176
|
作者：
Balalaie, Saeed [1 ]
Sheikh-Ahmadi, Masoumeh [1 ]
Bararjanian, Morteza [1 ]
机构：
[1] KN Toosi Univ Technol, Peptide Res Grp, Tehran, Iran
来源：
CATALYSIS COMMUNICATIONS | 2007年 / 8卷 / 11期
关键词：
4H-Benzo[b]pyrans; 4H-Chromene; tetra-methyl ammonium hydroxide; aqueous media; Tandem Knoevenagel-cyclocondensation reaction;
D O I：
10.1016/j.catcom.2007.01.034
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：
Tetra-methyl ammonium hydroxide has been used as a mild, efficient, neutral and cheap catalyst for the synthesis of various 4H-benzo[b]pyran derivatives via a one-pot three-component condensation in aqueous media. This method offers the advantages of proceeding, neutral and mild conditions, giving high to excellent yields of the products and simple work-up. (c) 2007 Elsevier B.V. All rights reserved.
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页码：1724 / 1728
页数：5
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