Uchytilova,V. et al., Collection of Czechoslovak Chemical Communications, 1971, vol. 36, p. 1955 - 1963
作者:Uchytilova,V. et al.
DOI:——
日期:——
JACOBSEN, N. W.;ROSE, S. E., AUSTRAL. J. CHEM., 40,(1987) N 5, 967-975
作者:JACOBSEN, N. W.、ROSE, S. E.
DOI:——
日期:——
Asymmetric triazines—XIII
作者:Raffaello Fusco、Silvano Rossi
DOI:10.1016/0040-4020(58)80016-2
日期:1958.1
The reaction of phosphoruspentachloride with some 3:5-disubstituted-4-nitrosopyrazoles (dimethyl, diphenyl, methyl phenyl and phenyl carbomethoxy) has been investigated. Formation of a new class of compounds, 1-chloro-4-cyano-2:3-diazabuta-1:3-dienes, is described. By treatment with ammonia and subsequent alkali-induced cyclisation these substances are converted into 5-amino-as-triazines and reactions