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Silica sulfuric acid as an efficient catalyst for the preparation of 2H-indazolo[2,1-b]phthalazine-triones

Paper ID Volume ID Publish Year Pages File Format Full-Text
43690 45983 2008 6 PDF Available
Title
Silica sulfuric acid as an efficient catalyst for the preparation of 2H-indazolo[2,1-b]phthalazine-triones
Abstract

Silica sulfuric acid as an efficient and reusable heterogeneous catalyst have been used for the preparation of 2H-indazolo[2,1-b]phthalazine-1,6,11(13H)-trione derivatives from the three-component condensation reaction of phthalhydrazide, dimedone, and aromatic aldehydes under solvent-free conditions in good to excellent yields and short reaction times.

Graphical abstractSilica sulfuric acid as an efficient and reusable heterogeneous catalyst have been used for the preparation of 2H-indazolo[2,1-b]phthalazine-1,6,11(13H)-trione derivatives from the three-component condensation reaction of phthalhydrazide, dimedone, and aromatic aldehydes under solvent-free conditions in good to excellent yields and short reaction times.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Silica sulfuric acid; Heterogeneous catalyst; Solvent-free; 2H-Indazolo[2,1-b]phthalazine-triones; Phthalhydrazide
First Page Preview
Silica sulfuric acid as an efficient catalyst for the preparation of 2H-indazolo[2,1-b]phthalazine-triones
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 345, Issue 2, 1 August 2008, Pages 128–133
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis