2,7-Di-tert-butylnaphtho[1,8-cd][1,2]dithiole 1,2-dioxides: thermally stable, photochemically active vic-disulfoxides

Abstract

Bulking up: The thermal barrier to rearrangement of a vicdisulfoxide is significantly increased through steric buttressing about the (O)S-S(O) bond. Whereas the title compounds represent the most thermally stable vicdisulfoxides known to date, they also undergo a novel photomediated epimerization at room temperature (see scheme). © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.