Bismuth(III) nitrate pentahydrate - a mild and inexpensive reagent for synthesis of coumarins under mild conditions

被引:98
作者
Alexander, VM [1 ]
Bhat, RP [1 ]
Samant, SD [1 ]
机构
[1] Univ Mumbai, Inst Chem Technol, Dept Chem, Bombay 400019, Maharashtra, India
关键词
coumarins; Pechmann condensation; Bi(NO3)(3)center dot 5H(2)O; solvent free;
D O I
10.1016/j.tetlet.2005.07.117
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Bismtuh(III) nitrate pentahydrate is found to be an efficient catalyst for the Pechmann condensation reaction of phenols and beta-ketoesters under solvent-free conditions. The reaction protocol is simple and is followed by aqueous work-up leading to the formation of the corresponding coumarin derivatives in good yield and high purity. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:6957 / 6959
页数:3
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