作者:Asik Hossian、Ranjan Jana
DOI:10.1039/c6ob01758d
日期:——
We report herein, a silver(I)-catalyzed Smiles rearrangement of 2-aryloxy- or 2-(arylthio)benzoic acids to provide aryl-2-hydroxybenzoate or aryl-2-mercaptobenzoate dimer, respectively, through 1,5-aryl migration from oxygen or sulfur to carboxylate oxygen. Mechanistically, the aryl ether moiety undergoes an intramolecular ipso attack by the carboxyl radical followed by a C–O or C–S bond cleavage.
我们在此报告,通过1,5-芳基迁移,通过银(I)催化的2-芳氧基-或2-(芳硫基)苯甲酸的Smiles重排以分别提供芳基-2-羟基苯甲酸酯或芳基-2-巯基苯甲酸酯二聚体。从氧或硫到羧化氧。从机理上讲,芳基醚部分受到羧基的分子内ipso攻击,然后发生C–O或C–S键断裂。芳基-2-巯基苯甲酸酯通过原位硫醇部分进行氧化二聚。