141357-25-7Relevant articles and documents
Tautomeric equilibria in solutions of 1-methyl-2-phenacylbenzimidazoles
Skotnicka, Agnieszka,Czeleń, Przemys?aw,Gawinecki, Ryszard
, p. 546 - 551 (2017/01/16)
Until now the susceptibility of 1-methyl-2-phenacylbenzimidazoles to the proton transfer has not been carefully examined. There only have been selective trials to recognize tautomeric equilibrium of substituted compounds. Unfortunately, conclusions of the
THE SYNTHESIS AND TAUTOMERIZATION OF KETENE AMINALS WITH BENZIMIDAZOLINE RING
Huang, Zhi-Tang,Wang, Mei-Xiang
, p. 2325 - 2332 (2007/10/02)
The first isolation of benzimidazoline ring substituted ketene aminals 7a-c and/or their amidine tautomers 7'b-d, which were synthesized by the reactions: (1) benzoyl substituted ketene mercaptals 3 with N-methyl-o-phenylenediamine 4, and (2) 1,2-dimethylbenzimidazole 5 with ethyl benzoates 6, were disclosed.The tautomeric equilibrium between 7 and 7', along with benzothiazoline and benzoxazoline ring substituted ketene N,S-acetals 8 and 8' and ketene N,O-acetals 9 and 9', were discussed.