Oxazolidin-2-one Ring, a Popular Framework in Synthetic Organic Chemistry Part 2 [1]. Applications and Modifications

The present review is mainly focused upon the use of C-substituted oxazolidin-2-ones as chiral auxiliaries in the stereocontrolled C-C and C-X (X = hetero atom) bond formation. The recent progress in the stereoselective alkylation, cycloaddition and aldol reaction, as well as in the 1,4-coniugate addition, in [2+2]- photocycloaddition, in Lewis acid promoted free-radical copolymerization reactions are discussed. Emerging new applications of the oxazolidin- 2-one nucleus, such as building blocks in the design and preparation of foldamers or as organocatalyst in enantioselective epoxidation reactions, will be also discussed.