N. Ramakrishna Reddy

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.

Triethylborane triggered intermolecular domino Michael–aldol three-component coupling reactions☆

Abstract The triethylborane triggered intermolecular domino Michael–aldol reaction is described. Initial triethylborane addition in a Michael fashion to methyl vinyl ketone resulted in a vinylborane which further reacted with an aldehyde to give the aldol product in a one-pot process.

Highly efficient synthesis of 3-alkyl/aryl-4-aryl-1,2,3,4-tetrahydroisoquinolines from N,N-dibenzylaminols

Abstract Substituted tetrahydroisoquinolines are synthesized in optically pure form using a Grignard reaction of N , N -dibenzyl aminol and Friedel–Crafts cyclization as the key steps.