Synthesis of 1-aryl(hetaryl)-1,2,3-triazoles with the use of ionic liquids
摘要:
1-Phenyl(furazanyl)-1,2,3-triazoles can be synthesised by the 1,3-dipolar cycloaddition of phenylazide 1 or 4-amino-3-azidofurazan 2 to acetylenes (or to 1-morpholinyl-2-nitroethene for 2) in ionic liquids (1-butyl-3-methylimidazolium tetrafluoroborate ([bmim] [BF4]) for 1 or 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim] [PF6]) for 2].
Synthesis and transformations of 4-amino-4′-(4-nitro-1H-1,2,3-tri-azol-1-yl)- and 4-amino-4′-(1,2,3-triazolo[4,5-c]-1,2,5-oxadiazol-5-yl)- 3,3′-(NNO)-azoxy-1,2,5-oxadiazoles
作者:L. V. Batog、V. Yu. Rozhkov、E. V. Shatunova、M. I. Struchkova
DOI:10.1007/s11172-008-0024-9
日期:2008.1
Methods for the synthesis of 4-amino-4′-R-3,3′-(NNO)-azoxy-1,2,5-oxadiazoles (amino-azoxyfurazans) with 4-nitro-1,2,3-triazol-1-yl and 1,2,3-triazolo[4,5-c]furazan-5-yl substituents (R) by cycloaddition of morpholinonitroethylene to 4′-amino-4-azido-3,3′-(ONN)-azoxyfurazan or oxidative condensation of 3-R-4-aminofurazans with 4-trifluoroacetylamino-3-nitrosofurazan were elaborated. Related polycyclic azo derivatives were also synthesized.