145326-21-2Relevant articles and documents
Triazolines. Part 32. Synthesis of 1-Alkyl-2-aminobenzimidazoles from 5-Amino-1-(2-nitroaryl)-1,2,3-triazolines
Erba, Emanuela,Mai, Giorgio,Pocar, Donato
, p. 2709 - 2712 (2007/10/02)
5-Amino-1-(2-nitroaryl)-1,2,3-triazolines 5 are converted into 1-alkyl-2-aminobenzimidazoles 7 in refluxing triethyl phosphite.The reaction occurs via thermal rearrangement of 5 followed by nitrogen elimination which produces N2-(2-nitroaryl)am