Tungstic acid-catalyzed synthesis of 3,3-bis(1H-indol-3-yl)indolin-2-one derivatives

被引：10

作者：

Patel, Gautam M. ^{[1
]}

Deota, Pradeep T. ^{[1
]}

机构：

[1] Maharaja Sayajirao Univ Baroda, Dept Appl Chem, Fac Engn & Technol, Vadodara 390001, India

来源：

HETEROCYCLIC COMMUNICATIONS | 2013年 / 19卷 / 06期

关键词：

indole; isatin; oxindole; tungstic acid; HYDROGEN-PEROXIDE; EFFICIENT; INDOLE; OXINDOLE; ALKALOIDS; ALDEHYDES; ISATIN;

D O I：

10.1515/hc-2013-0142

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Tungstic acid was used as a low-cost and readily available heterogeneous catalyst for the synthesis of 3,3-bis(1H-indol-3-yl)indolin-2-one derivatives from indoles. The reaction parameters, including catalyst quantity, solvents, temperature, and time were optimized. The present method has several advantages, such as mild conditions, simple work-up, elimination of anhydrous condition, easy recovery of catalyst and its recyclability as compared with existing methods.

引用

页码：421 / 424

页数：4

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