Four component synthesis of (Z)-4-alkoxy-1,3-dimethylalk-2-enyl methyl sulfones: on the intermediacy of sultines (3,6-dihydro-1,2-oxathiin-2-oxides) arising from suprafacial hetero-Diels-Alder additions of sulfur dioxide

Megevand, S.Moore, J.Schenk, K.Vogel, P.2005-11-092005-11-092005-11-09200110.1016/S0040-4039(00)02102-Xhttps://infoscience.epfl.ch/handle/20.500.14299/219783The reactions of (E,E)-1-benzyloxy-2-methylpenta-1,3-diene (9) with 3,3-dimethyl-2-(trimethylsilyloxy)butene and (Z)-3-(trimethylsilyloxy)pent-2-ene in SO2 and a Lewis acid give silyl sulfinates that are quenched with Met to generate the corresponding (Z)-4-benzyloxy-1,3-dimethylalk-2-enyl methyl sulfones with unlike relative configuration at C-l and C-4 (by X-ray diffraction studies), in support of processes involving the intermediacy of a sultine arising from the suprafacial hetero-Diels-Alder addition of SO2 to diene 9. (C) 2001 Elsevier Science Led. All rights reserved.aldolsalkenylationcycloadditionsulfinic acidsX-raycrystallographyStereoselective synthesisFour component synthesis of (Z)-4-alkoxy-1,3-dimethylalk-2-enyl methyl sulfones: on the intermediacy of sultines (3,6-dihydro-1,2-oxathiin-2-oxides) arising from suprafacial hetero-Diels-Alder additions of sulfur dioxidetext::journal::journal article::research article