Microwave-Enhanced Greener Synthesis of Indazoles via Nitrenes
Autor: | Deepu Varughese, Maghar S. Manhas, Ajay K. Bose |
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Rok vydání: | 2007 |
Předmět: | |
Zdroj: | ChemInform. 38 |
ISSN: | 1522-2667 0931-7597 |
DOI: | 10.1002/chin.200701120 |
Popis: | Non-traditional methods (grinding, water-based biphasic reactions, microwave chemistry) were used for the preparation of Schiff bases from several amines and 2-nitrobenzaldehydes. These nitro compounds were allowed to react with triethyl phosphite under microwave irradiation for the generation of nitrenes that underwent insertion reactions to form indazoles. This procedure constitutes an energy-efficient, greener chemistry version of the Cadogan reaction for nitrene-based formation of nitrogen heterocycles. |
Databáze: | OpenAIRE |
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