New aspects of the chemistry of 2,3-dihydro-1H-1,5-benzodiazepine
Autor: | Valeriy D. Orlov, F. G. Yaremenko, Nadezhda N. Kolos, V. F. Lavrushin |
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Rok vydání: | 1980 |
Předmět: | |
Zdroj: | Chemistry of Heterocyclic Compounds. 16:547-550 |
ISSN: | 1573-8353 0009-3122 |
DOI: | 10.1007/bf00561358 |
Popis: | Under basic catalysis conditions the reaction of 4- and 4'-substituted chalcones with o-phenylenediamine leads to 2,3-dihydro-2,4-diaryl-1H-1,5-benzodiazepines; β-amino adducts, the ability of which to undergo intramolecular condensation increases as the basicity of the catalyst is increased, are formed as intermediates. A different pathway for the process (the formation of an azomethine) is observed in the reaction with cinnamaldehyde. It is concluded that conformational factors play a primary role in the direction of the reaction. |
Databáze: | OpenAIRE |
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