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- Title
Reusable silica supported poly phosphoric acid catalyzed three-component synthesis of 2H-indazolo[2,1-b]phthalazine-trione derivatives.
- Authors
Shaterian, Hamid Reza; Hosseinian, Asghar; Ghashang, Majid
- Abstract
An efficient synthesis 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 using reusable silica supported poly phosphoric acid (PPA-SiO2) as heterogeneous acid catalyst has been investigated.
- Subjects
SILICA; SILICON compounds; POLYPHOSPHORIC acid; CATALYSIS; CONDENSATION; ALDEHYDES; SURFACE chemistry; PHYSICAL &; theoretical chemistry; CHEMICAL reactions
- Publication
ARKIVOC: Online Journal of Organic Chemistry, 2009, p59
- ISSN
1551-7004
- Publication type
Article