107469-58-9Relevant academic research and scientific papers
1-Arylimino-pyrazole Betaines, Pyrazoles and 1,2,4-Triazines from 3-Arylazo-propenoic Acid N-Chloroamides
Lutze, G.,Kirschke, K.,Krauss, N.
, p. 616 - 622 (2007/10/02)
Reaction of 3-arylazo-propenoic acid amides 5 with NaOCl yields N-chloroamides 6 which give under alkaline conditions 1,2,4-triazines 9 and 10 (products of a Hofmann degradation).This reaction competes with an intramolecular electrophilic amination and a
RING TRANSFORMATIONS OF PYRAZOLONES VIA AZO-OLEFINS
Schmitz, Ernst,Lutze, Gerhard,Kirschke, Klaus,Huebner, Petra
, p. 61 - 64 (2007/10/02)
Instead of substitution, 4-halo-pyrazolones undergo ring opening to azo-olefins (2, 12, 16) on reaction with nucleophiles.Attempted Hofmann degradation of N-Haloamides 4 has to compete with either ring closure, involving NHCl-shift to 7, or formation of m
