Author/Authors :
Hadd، نويسنده , , Michael J and Smith، نويسنده , , Mark A and Gervay-Hague، نويسنده , , Jacquelyn، نويسنده ,
Abstract :
A novel reagent (diisopropoxyphosphorylmethanesulfonylmethanesulfonylmethyl)-phosphonic acid diisopropyl ester (8) capable of forming symmetrical and non-symmetrical α,β unsaturated gem-disulfones is reported. Both aromatic and aliphatic aldehydes react in good yields to give exclusively the trans isomer. Selectivity for the mono-olefin can be achieved by varying the stoichiometry of reagents.