One-pot synthesis of aliphatic and aromatic 2H-indazolo[2,1-b]phthalazine-triones catalyzed by N-halosulfonamides under solvent-free conditions |
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| Authors: | Ramin Ghorbani-Vaghei Rahman Karimi-NamiZahra Toghraei-Semiromi Mostafa AmiriMehdi Ghavidel |
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| Affiliation: | a Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, 65174, Hamedan, Iran
b Department of Chemistry, Urmia University, Urmia 57154, Iran |
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| Abstract: | N, N, N′, N′-Tetrabromobenzene-1,3-disulfonamide and poly(N-bromo-N-ethylbenzene-1,3-disulfonamide) were used as efficient catalysts for the one-pot synthesis of aliphatic and aromatic 2H-indazolo[2,1-b]phthalazine-triones in excellent yields from aldehydes, phthalhydrazide, and dimedone at 80-100 °C under solvent-free conditions. |
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| Keywords: | Indazolo[2,1-b]phthalazine-trione Multicomponent reaction Phthalhydrazide Dimedone Solvent-free TBBDA PBBS |
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