The　anodic　oxidation　of　aminophenols　and　their　amino-protected　derivatives　was　investigated　by　using　cyclic　voltammetry　and　preparative　electrolysis　methods.　The　results　showed　that　like　the　catechols　the　amino-protected　aminophenol　could　also　undergo　Michael　addition,　and　that　the　benzenesulfonate　group　was　regioselectively　introduced　at　the　meta-position　of　the　amino　group.　In　contrast,　the　expected　products　were　not　formed　from　the　oxidation　of　unprotected　aminophenols.　Finally,　a　reaction　mechanism　is　proposed.　(C)　2012　Elsevier　Ltd.　All　rights　reserved.