626606-17-5Relevant articles and documents
Water-mediated synthesis of 2-substituted benzimidazoles by boric acid and glycerol
Mukhopadhyay, Chhanda,Tapaswi, Pradip Kumar,Butcher, Ray J.
experimental part, p. 140 - 144 (2009/08/15)
A very simple, mild, and highly efficient green catalyst has been developed for the synthesis of 2-substituted benzimidazoles by treatment of substituted ortho-phenylenediamines and aldehydes in water at 80C in the presence of boric acid (5 mol-%) and glycerol (0.05 mL). This methodology has been standardized on 55 substrates, and nine new compounds have been synthesized.
Intramolecular Aromatic Nucleophilic Substitution of the Benzimidazole-Activated Nitro Group
Fekner, Tomasz,Gallucci, Judith,Chan, Michael K.
, p. 4795 - 4798 (2007/10/03)
(Equation Presented) A wide range of 2-(2-nitrophenyl)-1H-benzimidazoles undergo high-yielding intramolecular SNAr of nitrite with N-pendant alkoxides under mild conditions (DMF, rt). When this operationally simple process is carried out at ele