Electrochemistry of 1,3-diazadihydroazulanone: Electrochemical reduction and oxidation of 1-tosyl-3-aryl-1,3-diazadihydroazulanone leading to migration and elimination of the tosyl group

Electrochemical oxidations of 1-tosyl-3-aryl-1,3-diazadihydroazulanones gave 6-tosyl-3-aryl-1,3-diazadihydroazulanones via migrations of the tosyl group. On the other hand, electrochemical reductions of the 1-tosylazulanones afforded 3-aryl-1,3-diazadihydroazulanones through eliminations of the tosyl group.