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
收藏
页码：7195 / 7198
页数：4
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