A highly efficient green synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives and their photophysical studies
A task-specific ionic liquid, [Bmim]OH, has been used for an efficient synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones by one-pot cyclocondensation reaction of phthalhydrazide, aromatic aldehydes, and malononitrile or ethyl cyanoacetate under microwave irradiation. The advantages of this meth...
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| Veröffentlicht in: | Tetrahedron letters 2011-10, Vol.52 (43), p.5702-5705 |
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| creator | Raghuvanshi, Dushyant Singh Singh, Krishna Nand |
| description | A task-specific ionic liquid, [Bmim]OH, has been used for an efficient synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones by one-pot cyclocondensation reaction of phthalhydrazide, aromatic aldehydes, and malononitrile or ethyl cyanoacetate under microwave irradiation. The advantages of this method include the use of green catalyst, no organic solvent, easy work-up and excellent yields. The photophysical properties for some 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives have been investigated for the first time. |
| doi_str_mv | 10.1016/j.tetlet.2011.08.111 |
| format | Article |
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| subjects | Aldehydes Catalysis Catalysts Catalysts: preparations and properties Chemistry Derivatives Exact sciences and technology General and physical chemistry Heterocyclic compounds Heterocyclic compounds with several n hetero atoms in the same ring, in separated rings or in fused rings Ionic liquids Microwaves Organic chemistry Preparations and properties Solvents Synthesis (chemistry) Tetrahedrons Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry |
| title | A highly efficient green synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives and their photophysical studies |
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