1,4-Bis(alkylsulfonyl)benzenes. A new and unexpected cathodic cleavage leading to the corresponding phenoxy ions
作者:Jacques Simonet、Olivier Fourets、Jean-François Pilard
DOI:10.1016/s0040-4039(00)00049-6
日期:2000.3
1,4-Bis(alkylsulfonyl)benzenes 2 exhibit the formation of a fairly stable anion radical under cathodic electron transfer. Its fragmentation leads both to 1-alkylsulfonyl-4-alkyl benzenes (ipso substitution) and 4-alkylsulfonylphenoxy ions, the presence of the latter suggesting a new mode of cleavage for strongly activated sulfones.
1,4-双(烷基磺酰基)苯2在阴极电子转移下表现出相当稳定的阴离子自由基的形成。它的断裂同时导致1-烷基磺酰基-4-烷基苯(ipso取代)和4-烷基磺酰基苯氧基离子,后者的存在提示了强活化砜裂解的新模式。