The discovery of two new classes of catalysts for hydrazone and oxime formation in water at neutral pH, namely 2-aminophenols and 2-(aminomethyl)benzimidazoles, is reported. Kinetics studies in aqueous solutions at pH 7.4 revealed rate enhancements up to 7-fold greater than with classic aniline catalysis. 2-(Aminomethyl)benzimidazoles were found to be effective catalysts with otherwise challeng...

Ruthenium(II) carbonyl complexes with phosphine-functionalized PNS type thiosemicarbazone ligands [RuCl(CO)(EPh3)(L)] (1-6) (E = P or As, L = 2-(2-(diphenylphosphino)benzylidene) thiosemicarbazone (PNS-H), 2-(2-(diphenylphosphino)benzylidene)-N-methylthiosemicarbazone (PNS-Me), 2-(2-(diphenylphosphino)benzylidene)-N-phenylthiosemicarbazone (PNS-Ph)) have been synthesized and characterized by el...

The six-coordinate oxovanadium(IV) complexes [VO(RTPP)(L)] (where R=H, methyl, methoxy and chloro groups and L= methyl and ethyl substituted benzimidazoles) were prepared by reacting the ligands; 2-methylbenzimidazole and 2-ethylbenzimidazole with various VO(RTPP). The complexes were characterized by elemental analysis, IR, UV–Vis and H & C NMR. All complexes show V=O stretching vibrations betw...

Root inhibition was also employed as an additional biological assay using cucumber seeds (variety i'vIarketer) as the test material. Seeds were germinated at room temperature (approximately 250 C) under laboratory conditions of alternatingf light and darkness on filter paper impregnated with a 0.005 -M solution of the compounds in Petri dishes. Four days after treatment the length of the primar...

Benzimidazoles are a very well-known, broad group of compounds containing nitrogen atoms in their structure that can mimic properties DNA bases. The show not only biological activities but also used for spectral and catalytic properties. Biological activity benzimidazoles be tuned accelerated coordination compounds. This minireview is focused on preparation bis(benzimidazoles), complexes, found...

A new series of 2,5- and/or 6-substituted benzoxazoles (7a-f), benzimidazoles (8a-g) holding cyclohexyl or cyclopentyl moieties at position 2 and 5- or 6-substituted-2-cyclohexylaminomethylbenzoxazoles (9a, b) was synthesized in order to determine their antimicrobial activities and feasible structure-activity relationships. The synthesized compounds were tested in vitro against three Gram-posit...