Mahmoud Tajbakhsh

Department of Chemistry, Mazandaran University, Babolsar, Iran.

[ 1 ] - An efficient and selective method for conversion of oximes, semicarbazones and phenylhydrazones to the corresponding carbonyl compounds under solvent-free conditions

o-Xylylenebis (triphenylphosphonium peroxymonosulfate) (1) was easily prepared from an aqueous solution of oxone and o-xylylenebis- (triphenylphosphonium bromide). This Compound (1) is a useful and selective reagent for conversion of oximes, semicarbazones and phenylhydrazones to the corresponding carbonyl compounds. The reaction was carried out under solvent-free conditions and in the presence...

[ 2 ] - H3PW12O40: An Efficient and Green Catalyst for the Facile and Selective Oxidation of Sulfides to Sulfoxides, Applied to the Last Step of the Synthesis of Omeprazole

Omeprazole, (6-methoxy-2-((4-methoxy-3,5-dimethylpyridin-2-yl)methylsulfinyl)-1H-benzimidazole is a well-established prescribed drug, exhibits proton pump inhibitor activity. In this work, a novel, facile, economical and selective oxidation approach using H3PW12O40 as Keggin type heteropolyacids along with H2O2 in the ...

[ 3 ] - Preparation and Characterization of a Molybdenum(VI) Schiff Base Complex as Magnetic Nanocatalyst for Synthesis of 2-Amino-4H-benzo[h]chromenes

A new recoverable molybdenum nanocatalyst was prepared by immobilization  of a Schiff base ligand on the surface of silica coated magnetite nanoparticles (Fe3O4@SiO2) through condensation reaction between 3-aminopropyl triethoxysilane and 2-hydroxy1-naphthaldehyde and succeeding reaction with dioxomolybdenum(VI) acetylacetonate (MoO2(acac)2). The synthesized cat...

[ 4 ] - An efficient and selective method for conversion of oximes, semicarbazones and phenylhydrazones to the corresponding carbonyl compounds under solvent-free conditions

o-Xylylenebis (triphenylphosphonium peroxymonosulfate) (1) was easily prepared from an aqueous solution of oxone and o-xylylenebis- (triphenylphosphonium bromide). This Compound (1) is a useful and selective reagent for conversion of oximes, semicarbazones and phenylhydrazones to the corresponding carbonyl compounds. The reaction was carried out under solvent-free conditions and in the presence...