53703-85-8Relevant academic research and scientific papers
Synthesis of fused imidazoles and benzothiazoles from (hetero)aromatic ortho-diamines or ortho-aminothiophenol and aldehydes promoted by chlorotrimethylsilane
Ryabukhin, Sergey V.,Plaskon, Andrey S.,Volochnyuk, Dmitriy M.,Tolmachev, Andrey A.
, p. 3715 - 3726 (2006)
New convenient conditions for benzimidazole and benzothiazole syntheses are described. A set of benzimidazoles, 3H-imidazo[4,5-b]pyridines, purines, xanthines and benzothiazoles was readily prepared from (hetero)aromatic ortho-diamines or ortho-aminothiop
Pyrolysis of N1,N3-Disubstituted 5-Methyl- and 5-Chlorobenzimidazolines
Chalapathi Rao, C. V.,Kondal Reddy, K.,Rao, N. V. Subba
, p. 967 - 969 (2007/10/02)
The pyrolysis of 2-aryl-1-benzyl-3,5-dimethyl(I)-, 5-chloro-3-methyl(II)-, 3-substituted-benzyl-5-methyl(III)- and 3-substituted-benzyl-5-chloro-(IV)-benzimidazolines has been carried out to study the orientation of their elimination reactions.The benzyl group is eliminated in preference to methyl in benzimidazolines of the types (I) and (II) irrespective of the nature of the substituent in phenylene and aryl moieties.The course of the elimination reaction in compounds of the types (III) and (IV) appears to be determined by the relative stabilities of benzyl and substituted benzyl radicals.The structures of the pyrolysis products have been established on the basis of spectral and chemical evidences.
