S. Shameem Sultana

Osmium tetroxide in poly(ethylene glycol) (PEG): a recyclable reaction medium for rapid asymmetric dihydroxylation under Sharpless conditionsDedicated to Prof. Goverdhan Mehta on his 60th birthday.Electronic supplementary information (ESI) available: experimental details. See http://www.rsc.org/suppdata/cc/b3/b305154b/

PEG (400) has been used as a recyclable and rapid reaction medium for the asymmetric dihydroxylation of olefins; Sharpless ligand is efficiently recovered and recycled with good enantioselectivity.

Ceric ammonium nitrate (CAN) catalyzed ring cleavage of N-tosyl aziridines: a potential tool for solution phase library generation

Abstract A range of N-tosylaziridines is cleaved with NaN3, H2O, MeOH to synthesize vicinal azidoamines, aminols and amino ethers in good to excellent yields catalyzed by ceric ammonium nitrate and used in solution phase library synthesis.

Direct condensation of carboxylic acids with polyethylene glycols catalyzed by Sc(OTf)3

Abstract Esterification of soluble polymers by direct condensation of equimolar amounts of carboxylic acids with polyethylene glycols is achieved using catalytic Sc(OTf)3 in toluene for the first time.