Proximity effects in diaryl derivatives. Part VI. Base-catalysed rearrangement of 2-(hydroxyamino)aryl aryl sulphones to 2-hydroxy-2′-(arylsulphonyl)azoxybenzenes
作者:M. F. Grundon、D. J. Maitland、W. L. Matier
DOI:10.1039/j39710000654
日期:——
Treatment of 2-(hydroxyamino)aryl phenyl sulphones or bis-(2-hydroxyaminoaryl) sulphones with aqueous sodium hydroxide at 20° gives 2-hydroxy-2′-(arylsulphonyl)azoxybenzenes (V) and (VII) and arenesulphonate anions. The hydroxy-group in the azoxy-product is derived from the sulphone or hydroxyamino-groups and not from the added base. 2-Nitrosoaryl phenyl sulphones, 2,2′-bis(arylsulphonyl)azoxybenzenes, and
在20°下用氢氧化钠水溶液处理2-(羟基氨基)芳基苯基砜或双-(2-羟基氨基芳基)砜,得到2-羟基-2'-(芳基磺酰基)az氧基苯(V)和(VII)和芳磺酸根阴离子。叠氮产物中的羟基衍生自砜或羟氨基,而不是所添加的碱。显示2-亚硝基芳基苯基砜,2,2'-双(芳基磺酰基)氮杂苯和2-亚硝基苯酚不是中间体。