Thies Thiemann, M. Luisa Sa′ e Melo, Andre′ S. Campos Neves, Yuanqiang Li, Shuntaro Mataka, Masashi Tashiro, Uwe Geißler and David Walton
Halogenated thiophenes have been cycloadded oxidatively to maleimides to give halogenated thiabicyclo[2.2.1]heptene S-oxides which have been subjected to an electrochemical extrusion of SO to give various halogeno-substituted phthalimides.