作者:W.J. Mijs、O.E. van Lohuizen、J. Bussink、L. Vollbracht
DOI:10.1016/0040-4020(67)80061-9
日期:1967.5
starting 4-aryloxyphenol: a homolytic fission mechanism (two dimeric phenols yielding monomer and trimer as primary products), or an intramolecular rearrangement mechanism (two dimeric molecules giving a tetramer as a primary product). The tetramers are not formed by direct coupling of 4-aryloxyradicals, the oxygen of one radical attacking thepara position of the terminal ring of the other. Experimental
通过对一级反应产物的分析,研究了Cu + /胺催化许多取代的4-芳氧基苯酚(二聚苯酚)氧化的机理。假定醌缩酮为中间体,可以根据起始4-芳氧基苯酚的取代方式以两种方式分解:均裂裂变机理(两种二聚酚产生单体和三聚体作为主要产物),或分子内重排机理(两种二聚体分子,以四聚体为主要产物)。四聚物没有通过4- aryloxyradicals直接耦合,一种自由基攻击的氧形成对另一方的终端环的位置。实验证据为提出的机制。