Vishal B. Sharma

Cobalt phthalocyanine catalyzed aerobic oxidation of secondary alcohols: an efficient and simple synthesis of ketones

A variety of activated and non-activated secondary alcohols have been efficiently oxidized to their corresponding ketones in excellent yields with molecular oxygen using cobalt phthalocyanine as catalyst in the presence of powdered potassium hydroxide.

Copper-catalyzed imination of pyridines using PhINTs as nitrene precursor

Abstract The reaction of PhINTs with pyridines in the presence of a catalytic amount of Cu(II) triflate afforded the corresponding p -tolylsulfonyliminopyridinium ylides in excellent yields.

Methyltrioxorhenium catalyzed aerobic oxidation of organonitrogen compounds

A variety of tertiary, secondary and primary organonitrogen compounds have been efficiently and selectivity oxidized to their corresponding N-oxides, nitrones, and nitro compounds with molecular oxygen using methyltrioxorhenium as catalyst.

Methyltrioxorhenium-catalyzed aerobic oxidative coupling of 2-naphthols to binaphthols

Abstract A variety of 2-naphthols have been selectively oxidized to their corresponding 1,1′-bi-2-naphthols in excellent yields with molecular oxygen using methyltrioxorhenium as catalyst.

Methyltrioxorhenium Catalyzed Oxidative Cleavage of α-Hydroxycarbonyl Compounds to Carboxylic Acids with Hydrogen Peroxide

Abstract Methyltrioxorhenium catalyzed oxidative cleavage of a variety of α-hydroxycarbonyl compounds with hydrogen peroxide selectively yielded corresponding carboxylic acids in excellent yields.

Ruthenium Catalyzed Oxidation of 1,2‐Diols to 1,2‐Diketones Using Bromamine‐T as an Oxidizing Agent

Abstract A variety of 1,2‐diols were selectively oxidized to their corresponding 1,2‐diketones with bromamine‐T using RuCl3 · xH2O as catalyst in alkaline acetonitrile/water (1:1) medium. The reaction was pH dependent (pH 8.4), and at higher pH the rate of the reaction decreased significantly.

An Unusual Copper Catalyzed Iodine Mediated Aziridination of Olefins with the Direct Use of p‐Toluenesulphonamide

Abstract p‐Toluenesulphonamide/I2 was found to be an efficient system for the copper catalyzed aziridination of olefins in good yields under very mild conditions.