Prakash P. Wadgaonkar

The palladium assisted transfer reduction of. alpha. ,. beta. -unsaturated nitroalkenes to oximes using ammonium formate

Abstract α, β-Unsaturated nitroalkenes are readily reduced to the corresponding oximes in good yields using ammonium formate in the presence of palladium. The reactions occur rapidly at room temperature in a solvent system of methanol and tetrahydrofuran.

Lipase-catalysed polyester synthesis in 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid

1-Butyl-3-methylimidazolium hexafluorophosphate ionic liquid was employed as a reaction medium for lipase-catalysed aliphatic polyester synthesis. Lipase PS-C exhibited excellent catalysis in polycondensation of diethyl octane-1,8-dicarboxylate and 1,4-butanediol at room temperature and at 60°C. A relatively high molecular weight polymer was obtained at 60°C.

The Reduction of Azides with Borohydride Supported on an Ion Exchange Resin

Abstract Borohydride supported on an ion exchange resin in methanol reduced aryl azides and arylsulfonyl azides to the corresponding aromatic amines and aryl sulfonamides in excellent yields. The isolation of pure products by simple filtration and evaporation is an important feature of this method.

The Vinylation of Aryl and Vinyl Halides Catalyzed by Copper Salts

Abstract Copper (I) bromide and copper (I) iodide catalyzed the vinylation of aryl and vinyl iodides to give the corresponding vinylated products in good to high yields.

The Reduction of α,β-Unsaturated Nitroalkenes to Nitroalkanes with Borohydride Supported on an Ion Exchange Resin

Abstract Borohydride supported on an ion exchange resin selectively reduced α,β-unsaturated nitroalkenes to nitroalkanes in high yields. The isolation of pure products by simple filtration is a key feature of this method.

The Transformation of Nitriles into Amides Using Sodium Percarbonate

The usefulness of sodium percarbonate, an inexpensive, safe and easily handled reagent for the transformation of nitriles into amides was investigated. Aromatic nitriles lacking ortho-substituents and heteroaromatic nitriles were efficiently transformed into amides; while ortho-substituted aromatic nitriles and aliphatic nitriles gave moderate yields of the corresponding amides.

OXIDATION OF OXIMES TO KETONES WITH ZEOLITE SUPPORTED PERMANGANATE

Abstract A variety of aldoximes and ketoximes are oxidised to corresponding aldehydes and ketones in excellent yields by zeolite supported permanganate

Synthesis of Substituted (±)-3,4-Dihydrocoumarins Using H-Y Zeolite

Abstract Synthesis of substituted (±)-3,4 Dihydrocoumarins were prepared with the reaction between substituted cinnamic acid and phenol catalysed by ecofriendly solid-acid catalyst H-Y zeolite involving esterification followed by ring closure.

Sodium percarbonate: a convenient reagent for efficiently oxidizing organoboranes

Abstract Sodium percarbonate, a readily available, inexpensive and easy to handle reagent, efficiently oxidizes organoboranes. The yields of alcohols are essentially identical to those obtained using standard oxidation procedure.

A FACILE SYNTHESIS OF ARYL THIOCYANATES USING SODIUM PERBORATE

A simple and convenient synthesis of aryl thiocyanates in high yields using sodium perborate is described.