82217-07-0Relevant academic research and scientific papers
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
Baydar, Ahmet E.,Boyd, Gerhard V.,Lindley, Peter F.,Walton, Adrial R.
, p. 415 - 418 (2007/10/02)
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).
