Approaches to 1,2,3,5-tetrazines. Synthesis of 1,2,3,5-tetrazinones and the formation of zwitterionic 1,2,4-triazolin-3-ones and 1-arylimino-1,2,4-triazolium salts

Autor:	Peter F. Lindley, Adrial R. Walton, Gerhard V. Boyd, Ahmet E. Baydar
Rok vydání:	1985
Předmět:	chemistry.chemical_classification Chemistry Aryl chemistry.chemical_element Nuclear magnetic resonance spectroscopy Nitrogen chemistry.chemical_compound Ylide X-ray crystallography Polymer chemistry Molecule Organic chemistry Phosgene Pyrolysis
Zdroj:	Journal of the Chemical Society, Perkin Transactions 1. :415
ISSN:	1364-5463 0300-922X
DOI:	10.1039/p19850000415
Popis:	The reaction of phosgene with 1,1 -dialkyl-2-arylazoguanidines (3) yields 4-dialkylamino-1-aryl-1,2,3,5-tetrazin-6-ones (5), together with traces of zwitterionic 5-dialkylamino-1-arylimino-1,2,4-triazolin-3-ones(7); both decompose when heated to give nitrogen, dialkylcyanamides, and aryl isocyanates. 1,1-Dimethyl-2-arylazo-3-chloro(dimethylamino)methyleneguanidines (10) cyclise spontaneously to give 1-arylimino-3,5-bis(dimethylamino)-1,2,4-triazolium salts (12).
Databáze:	OpenAIRE
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