130720-55-7Relevant academic research and scientific papers
Attempted Generation of Substituted 1,2,3-Triazolium-1-methanides: a New Ring Expansion to 2,3-Dihydro-1,2,4-triazines: ab initio Calculations on 1,2,3-Triazolium-1-oxide, -1-imide, and -1-methanide 1,3-Dipoles and a Striking Illustration of the Hammond Principle in the Cyclisation of H.
Butler, Richard N.,Duffy, J. Paul,Cunningham, D.,McArdle, P.,Burke, Luke A.
, p. 882 - 884 (1990)
Treatment of 1-methyl-1,2,3-triazolium salts with ethoxide gave 2,3-dihydro-1,2,4-triazines via 1,2,5-triazahexa-1,3,5-trienes but the expected 1,2,3-triazolium-1-methanide 1,3-dipoles were not detected and ab initio calculations suggest that they are thermodynamically unfavoured; the X-ray crystal structure of (6a), a dihydro-1,2,4-triazine, is reported.
