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Synthesis of triazolo indazolones using 3D mesoporous aluminosilicate catalyst with nanocage structure |
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| Authors: | M Adharvana Chari A Pandurangan B Sathyaseelan SM Javaid Zaidi |
| Institution: | a International Center for Materials Nanoarchitectonics, WPI Research Center, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan b Department of Chemistry, Anna University, Chennai 600 025, India c The Center of Research Excellence in Renewable Energy (CoRERE), Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia d Institute of Catalysis & Petroleum Technology, A.C. College of Technology, Anna University, Chennai 600025, India |
| Abstract: | Mesoporous Aluminosilicate (AlKIT-5) has been found to be an efficient catalyst for one-pot synthesis of triazolo1,2-a]indazole-1,3,8-trione derivatives from dimedone, urazole, and aromatic aldehydes using acetonitrile as a solvent. This new method is simple, effective, ecofriendly, and consistently has the advantage of excellent yields (80-96%) and short reaction time (30-60 min). The effect of the catalyst weight, aluminum content in the catalyst, and the solvents on the synthesis of triazolo1,2-a]indazole-1,3,8-trione derivatives has been investigated. It has been found that the catalyst can be recycled for several times without much affecting its activity for a variety of organic transformations. |
| Keywords: | Dimedone Urazole Aromatic aldehyde One-pot condensation AlKIT-5 Indazole-1 3 8-trione derivatives |
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