A NEW SYNTHESIS OF α,β-UNSATURATED SULPHONATES AND THEIR STEREOSELECTIVE CONVERSION INTO TRANS-α,β-EPOXYSULPHONATES.

Article abstract of DOI:10.1016/S0040-4039(00)95921-5

Diethylphosphoryl methanesulphonates 2 and 4 were readily converted into α,β-unsaturated sulphonates by succesive treatment with n-BuLi and aldehydes or ketones.Epoxidation of esters 5 with t-butyl hydroperoxide in the presence of Triton B yielded stereoselectively salts of trans-α,β-epoxysulphonic acids.