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

来源：

TETRAHEDRON LETTERS | 2005年 / 46卷 / 40期

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

页码：6957 / 6959

页数：3

共 39 条

[31]

Shringer RL., 1942, Org React, V1, P1

[32] Highly efficient and single step synthesis of 4-phenylcoumarins and 3,4-dihydro-4-phenylcoumarins over montmorillonite K-10 clay, under microwave irradiation [J].

Singh, J ;

Kaur, J ;

Nayyar, S ;

Kad, GL .

JOURNAL OF CHEMICAL RESEARCH-S, 1998, (05) :280-+

[33] Sulphamic acid - An efficient and cost-effective solid acid catalyst for the Pechmann reaction [J].

Singh, PR ;

Singh, DU ;

Samant, SD .

SYNLETT, 2004, (11) :1909-1912

[34] Microwave accelerated preparation of [bmim][HSO4] ionic liquid:: an acid catalyst for improved synthesis of coumarins [J].

Singh, V ;

Kaur, S ;

Sapehiyia, V ;

Singh, J ;

Kad, GL .

CATALYSIS COMMUNICATIONS, 2005, 6 (01) :57-60

[35] Bismuth nitrate-catalyzed versatile Michael reactions [J].

Srivastava, N ;

Banik, BK .

JOURNAL OF ORGANIC CHEMISTRY, 2003, 68 (06) :2109-2114

[36] Inhibition of cell cycle progression in human leukemia HL-60 cells by esculetin [J].

Wang, CJ ;

Hsieh, YJ ;

Chu, CY ;

Lin, YL ;

Tseng, TH .

CANCER LETTERS, 2002, 183 (02) :163-168

[37] A NEW 1-STEP SYNTHESIS OF SUBSTITUTED COUMARINS [J].

WOODS, LL ;

SAPP, J .

JOURNAL OF ORGANIC CHEMISTRY, 1962, 27 (10) :3703-&

[38] A new and efficient route to 4-carboxymethylcoumarins mediated by vinyltriphenylphosphonium salt [J].

Yavari, I ;

Hekmat-Shoar, R ;

Zonouzi, A .

TETRAHEDRON LETTERS, 1998, 39 (16) :2391-2392

[39]

Zabradnik M, 1992, PRODUCTION APPL FLUO

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