One-pot synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,1 0-dione derivatives under solvent-free conditions

A series of 1H-pyrazolo[1,2-b]phthalazine-5,1 0-diones were obtained from aldehydes, phthalhydrazide and malononitrile in good to excellent yields at 80-100 degree C under solvent-free conditions by proceeding through a simple, mild and efficient procedure utilizing N,N,N',N'-tetrabromoben...

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Bibliographic Details
Published inRSC advances Vol. 4; no. 89; pp. 47925 - 47928
Main Authors Ghorbani-Vaghei, Ramin, Noori, Samira, Toghraei-Semiromi, Zahra, Salimi, Zahra
Format Journal Article
LanguageEnglish
Published 01.10.2014
Subjects
Aldehydes
Catalysis
Catalysts
Derivatives
Malononitrile
Synthesis
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Summary:A series of 1H-pyrazolo[1,2-b]phthalazine-5,1 0-diones were obtained from aldehydes, phthalhydrazide and malononitrile in good to excellent yields at 80-100 degree C under solvent-free conditions by proceeding through a simple, mild and efficient procedure utilizing N,N,N',N'-tetrabromobenzene-1,3-disulfonamide [TBBDA] and poly(N-bromo-N-ethylbenzene-1,3-d isulfonamide) [PBBS] as catalysts.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:2046-2069
DOI:10.1039/c4ra08617a