作者:David Crich、Thomas K. Hutton、Krishnakumar Ranganathan
DOI:10.1021/jo050990c
日期:2005.9.1
2-alkylsulfonyl-2‘-biphenyl radicals, in which the alkyl group is primary, secondary, or tertiary, were generated and the products of their reactions investigated. Dibenzothiophene S,S-dioxide was not identified among the products, which arose mainly from intramolecular hydrogen abstraction from the alkyl group or addition to the solvent, benzene. On this basis, it is concluded that homolytic substitution at sulfonyl
产生了一系列的2-烷基磺酰基-2'-联苯基基团,其中的烷基是伯,仲或叔烷基,并且研究了它们的反应产物。在产物中未鉴定出二苯并噻吩S,S-二氧化物,其主要来自分子内从烷基中提取氢或向溶剂苯中添加氢。在此基础上得出的结论是,如果可能的话,在磺酰硫上的均质取代太慢而无法优先于许多竞争性分解途径。先前的文献结果表明,在磺酰基硫基上进行分子内均溶取代的可能性可以通过替代方法来解释。