an efficient one-pot oxidation/condensation tandem process has been developed for the synthesis of 2-substituted benzimidazole derivatives from benzylic alcohols and 1,2-phenylenediamine with use of urea-hydrogen peroxide/silica phosphoric acid  as a bifunctional catalyst. this method provides a rapid and efficient access to 2-substituted benzimidazoles.

Asymmetric oxidation of heterocyclic sulfides, including imidazole, benzimidazole, indole and pyrimidine derivatives, were studied using a tartrate/Ti((i)OPr)4 catalyst system.

Two new bis(benzimidazole)aryl derivatives have been prepared and one of them has been shown to induce and stabilize formation of a G-quadruplex.

Cancer is one of the most serious lifethreatening diseases for which there presently no cure. According to current World Health Organization (WHO) reports cancer responsible out every six deaths worldwide. Benzimidazole a heterocyclic, aromatic molecule that acts as biological scaffold with anticancer, antitumor, and antiproliferative activities, among other effects. benzimidazole oxazole are i...

Some new pyrimido[1,2-a]benzimidazole derivatives were synthesized by reacting 2-amino benzimidazole and chalcones in n-butanol at reflux temperature. In our present study we have used various heterocyclic chalcones derived from furfural and substituted acetophenones. All synthesized compounds were characterized by IR, 1 H NMR and Mass spectroscopy. All synthesized compounds were screened for t...

Obtained benzimidazole derivatives, our next synthesized heterocyclic compounds, belong to a new group of chemical bondings with potential anticancer properties (Błaszczak-Świątkiewicz & Mikiciuk-Olasik, 2006, J Liguid Chrom Rel Tech 29: 2367-2385; Błaszczak-Świątkiewicz & Mikiciuk-Olasik, 2008, Wiad Chem 62: 11-12, in Polish; Błaszczak-Świątkiewicz & Mikiciuk-Olasik, 2011, J Liguid Chrom Rel T...

A series of 22 novel 1,2-disubstituted-1H-benzimidazole-N-alkylated-5- carboxamidine derivatives were synthesized and evaluated for in vitro antibacterial activity against S. aureus and methicillin resistant S. aureus (MRSA), E. coli, E. faecalis and for antifungal activity against C. albicans. Compound 59 [1-(2,4-dichlorobenzyl)-N- (2-diethylaminoethyl)-1H-benzimidazole-5-carboxamidine], with ...