CYCLOADDITION OF NITRONES AND α,β-UNSATURATED SUGAR LACTONES

Article abstract of DOI:10.1016/S0040-4020(01)82368-1

It was found that 1,3-cycloaddition of nitrones 1-3 to α,β-unsaturated sugar carbonyl compounds 4-8 proceeds regiospecifically to give mixtures of stereoisomers.Nitrones 1-3 entered compounds 4-8 in trans-relation to the existing ring substituent.