Synthesis of chiral 2,3-disubstituted 1,4-diazabicyclo [2.2.2] octane. New ligand for the osmium-catalyzed asymmetric dihydroxylation of olefins

Abstract

Chiral 2,3-disubstituted 1,4-diazabicyclo[2.2.2]octane (DABCO) derivatives have been synthesized and utilized as a chiral ligand for the osmium-catalyzed asymmetric dihydroxylation of olefins. Optically active diols in up to 41%ee are obtained in good yields.