180779-90-2Relevant academic research and scientific papers
1,2,3-Triazolium-1-unsubstituted methanides, carbon analogues of triazole-N-oxides: A 1,3-dipole cascade from 1,2,3-triazolium-1-methanide to 1,2,4-triazinium-4-methanide: New routes to pyrrolo[1,2-c] [1,2,3]triazoles, pyrrolo[1,2-d] [1,2,4]triazines and substituted 1-aminopyrroles. Azolium 1,3-dipoles
Butler, Richard N.,McDonald, Peter D.,McArdle, Patrick,Cunningham, Desmond
, p. 1617 - 1621 (2007/10/03)
A 1,2,3-triazolium-1-methanide species has been generated and trapped in cycloadditions with alkyne dipolarophiles. The triazolium-1-methanide, a direct carbon analogue of the triazole-N-oxide, is an unstable intermediate prone to ring-opening and re-cyclisation to a 1,2,4-triazine system. New routes to substituted pyrrolo[1,2-c][1,2,3]triazoles, pyrrolo[1,2-d][1,2,4]triazines and substituted 1-aminopyrroles have resulted from this work. X-Ray crystal structures are described for 1,3,3a-triphenyl-4,5-diethoxycarbonyl-3a,6-dihydropyrrolo[1,2-c][1,2,3]triazole 6a, 1-N-anilino-2-phenyl-3,4-diethoxycarbonylpyrrole 9a and 3-(p-methoxyphenyl)-1,8a-diphenyl-8-exo-ethoxycarbonyl-3,4,6,7,8,8a- hexahydropyrrolo [1,2-d][1,2,4] triazine 15d.
Generation and trapping of a 1,2,3-Triazolium Methanide. A Carbon Analogue of the Azole N-Oxide: Routes to Pyrrolotriazoles and Substituted 1-Aminopyrroles
Butler, Richard N.,McDonald, Peter D.,McArdle, P.,Cunningham, D.
, p. 1653 - 1656 (2007/10/02)
Trapping of the first azole N-unsubstituted methanide species, a carbon analogue of the ubiquitous azole N-oxide system is described; new synthetic routes to pyrrolotriazoles and 1-aminopyrroles have resulted.
