Peer-Reviewed Journal Details
Mandatory Fields
Butler, RN,McDonald, PD,McArdle, P,Cunningham, D
1996
July
Journal Of The Chemical Society-Perkin Transactions 1
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
Published
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Optional Fields
DIALKYL ACETYLENEDICARBOXYLATES SYSTEM SALTS
1617
1621
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.
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