Solvent-free sonochemical one-pot three-component synthesis of 2H-indazolo[2,1-b]phthalazine-1,6,11-triones and 1H-pyrazolo[1,2-b]phthalazine-5,10-diones

被引：57

作者：

Shukla, Gaurav ^{[1
]}

Verma, Rajiv K. ^{[1
]}

Verma, Girijesh K. ^{[1
]}

Singh, Maya Shankar ^{[1
]}

机构：

[1] Banaras Hindu Univ, Fac Sci, Dept Chem, Varanasi 221005, Uttar Pradesh, India

来源：

TETRAHEDRON LETTERS | 2011年 / 52卷 / 52期

关键词：

Ultrasound irradiation; Solvent-free conditions; Indazolo[2,1-b]phthalazine-1,6,11-triones; Pyrazolo[1,2-b]phthalazine-5,10-diones; (S)-Camphorsulfonic acid; One-pot three-component reaction; MULTICOMPONENT REACTIONS; ULTRASOUND IRRADIATION; CATALYZED EFFICIENT; AMBIENT CONDITIONS; CARBONYL-COMPOUNDS; ORGANIC SYNTHESES; N-HETEROCYCLES; ALPHA-AMINO; ACID; RING;

D O I：

10.1016/j.tetlet.2011.10.136

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A rapid and efficient one-pot three-component protocol for the synthesis of 2H-indazolo[2,1-b]phthalazine-1,6,11-triones 4 and 1H-pyrazolo[1,2-b]phthalazine-5,10-diones 6 has been developed by domino coupling of phthalhydrazide, 1,3-diketones, and aldehydes under solvent-free conditions at 80 degrees C as well as under solvent-free ultrasound irradiation at room temperature promoted by (S)-camphorsulfonic acid. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：7195 / 7198

页数：4

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