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A new synthesis of α,β-unsaturated sulphonates and their stereoselective conversion into trans-α,β-epoxysulphonates

✍ Scribed by Juan Carlos Carretero; Léon Ghosez

Publisher: Elsevier Science
Year: 1987
Tongue: French
Weight: 236 KB
Volume: 28
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)95921-5

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✦ Synopsis

Sumnary : Oiethylphosphoryl methanesulphonates 2 and 4 were readily converted into cu,p-unsa- _ _ turated sulphonates by successive treatment with n-8uLi and aldehydes or ketones. Epoxidation of esters 5 with t-butyl hydroperoxide in the presence of Triton 6 yielded stereoselectively _ salts of trans-a,p-epoxysulphonic acids.

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