80862-32-4Relevant articles and documents
Nitration of Azasydnones and Azasydnonimines: A Method for the Functionalization of Aryl Derivatives
Dalinger, Igor L.,Serushkina, Olga V.,Lipilin, Dmitry L.,Anisimov, Aleksei A.,Suponitsky, Kyrill Yu.,Sheremetev, Aleksei B.
, p. 802 - 809 (2019)
The first example of functionalization of mesoionic 3-R-1,2,3,4-oxatriazol-5-ones and 3-substituted-1,2,3,4-oxatriazol-5-imines (azasydnones and azasydnonimines, respectively) by the electrophilic reaction without destruction of the oxatriazole ring is re
Synthesis of mesoionic 3-aryl(hetaryl)-1,2,3,4-oxatriazol-5-ones based on N-aryl-and N-hetarylhydrazones of bromonitroformaldehyde
Shevelev,Dalinger,Gulevskaya,Cherkasova,Vinogradov,Ugrak,Starosotnikov
, p. 363 - 373 (2007/10/03)
Dehydrobromination of N-arylhydrazones of bromonitroformaldehyde (at 20°C) in the presence of alkali and ammonium salts of strong mineral acids, HNO3, silica gel, and Al2O3 forms mesoionic 3-aryl-1,2,3,4-oxatriazol-5-ones
CONVERSION OF ARYLHYDRAZONES OF BROMONITROFORMALDEHYDE AND ARYLAZATRINITROMETHANES TO 3-ARYL-1,2,3,4-OXATRIAZOLIUM-5-ONES
Martynova, M. N.,Pevzner, M. S.,Smorygo, N. A.,Serebryakova, N. M.
, p. 1238 - 1240 (2007/10/02)
Mesoionic 3-aryl-1,2,3,4-oxatriazolium-5-ones rather than 1,4-diaryl-dihydro-3,6-dinitro-1,2,3,4-tetrazines, as previously assumed, are formed when arylhydrazones of bromonitroformaldehyde and arylazotrinitromethanes are heated in acetic acid.
