D. S. Iyengar

A New Novel and Practical One Pot Methodology for Conversion of Alcohols to Amines

Abstract A convenient and efficient one pot sequence has been developed for the transformation of alcohols to amines using Sodium azide, triphenylphosphine in CC14-DMF.

Regioselective Cleavage of Epoxides: Conversion of Racemic Epoxides to Optically Active Alcohols

Abstract Regioselective reduction of racemic epoxides to optically active alcohols using chirally modified zirconium tetrachloride - sodium borohydride with L-proline.

An enantioselective synthesis of (1S,2S)-pseudoephedrine†

Synthesis of (1S,2S)-pseudoephedrine is described via reduction of an alanine-derived oxazolidinone followed by treating with phenyl magnesium bromide and chemoselective N-methylation in an efficient and practical manner.

Reductive Cleavage of Acetals/Ketals with ZrCl4/NaBH4

Abstract Reductive cleavage of acetals/ketals with zirconium tetrachloride-sodium borohydride leading to the formation of ether alcohols is described.

A Rapid and Efficient Cleavage of Organic Disulfides to Mercaptans Using ZrCl4/NaBH4

Abstract A practical & cheaper reagent system ZrCl4/NaBH4 is used for the reductive cleavage of organic disulfides to mercaptans under mild conditions, in excellent yields.

An Efficient and Selective Deprotection of Tetrahydropyranyl Ethers by CeCl3.7H2O

Abstract Treatment of tetrahydropyranyl ethers with cerium (III) chloride heptahydrate in methanol provides a simple, convenient and selective method for detetrahydropyranylation, and the parent alcohols are obtained in high yields.

An Efficient and Chemoselective Deoxygenation of Hetero Cyclic N-Oxides Using Licl/nabh4

Abstract A practical & novel reagent system L1C1/NaBH4 is used for the deoxygenation of N-Oxides to amines is described.

A Novel, Simple and Rapid Protocol For N-Protected-oxazolidine-5-ones

Abstract A simple and efficient method for the preparation of N-protected oxazolidine-5-ones using microwave irradiation is described.

A Novel, Practical and Highly Chemoselective Methodology for Reduction of Disulphides to Thiols

Abstract A novel, simple and efficient method for the reduction of disulfides to thiols using In/NH4Cl is described.

A Novel, Chemoselective and Efficient Production of Amines from Azides Using ZrCl4/NaBH4

Abstract A practical & cheaper reagent system ZrCl4/NaBH4 is used for the production of amines from azldes is described.