Nitroxides (aminyl oxides) - XLI. Formation and dimerization of β-sulfonyl vinyl nitroxides. CC-versus OC-dimerization
作者:Hans Günter Aurich、Klaus-Dieter Möbus
DOI:10.1016/s0040-4020(01)89108-0
日期:1989.1
Upon oxidation of hydroxylamines 1a–c only nitrones 2a–c could be isolated although the nitroxides 3a–c were detected by ESR. Oxidation of 1f yields compound 5, the CC-dimer of 4. Whereas oxidation of 1d affords only 7d which arises from 3d by CC-dimerization and elimination of propylsulfinic acid, from vinyl nitroxide 3e products 7e,8 and 9 are formed by CC-dimerization and subsequent reaction steps
羟胺1a–c氧化后,仅硝酮2a–c可以被分离,尽管ESR检测到了氮氧化物3a–c。1f的氧化生成化合物5,CC的二聚体4。而氧化1D得到仅7D其来自3D通过CC二聚化和消除propylsulfinic酸的,来自乙烯基氮氧3E产品7E,8和9是由CC二聚化和随后的反应步骤,以及形成11经由形成中间OC二聚体10。讨论了导致不同产物的反应步骤。