Pd-catalyzed direct arylation of electron-deficient polyfluoroarenes with aryliodine(III) diacetates
作者:Zhengjiang Fu、Qiheng Xiong、Wenbiao Zhang、Zhaojie Li、Hu Cai
DOI:10.1016/j.tetlet.2014.11.033
日期:2015.1
polyfluoroarenes with readily available aryliodine(III) diacetates was developed with moderate to good yields. The process exhibited good functional tolerance with respect to methyl, methoxy, bromo, chloro, trifluoromethyl, cyano, and aldehyde groups. Mechanistic studies revealed this coupling involved in situ generation of aryl iodide from heating-promoted decomposition of aryliodine(III) diacetate, followed by
现已开发出Pd催化的缺电子多氟芳烃与易于获得的芳基碘(III)二乙酸酯的直接芳基化反应,产率中等至良好。该方法对于甲基,甲氧基,溴,氯,三氟甲基,氰基和醛基表现出良好的功能耐受性。机理研究表明,这种偶联涉及加热促进的二乙酸芳基碘(III)的分解,原位生成芳基碘化物,然后与多氟芳烃底物偶联,得到所需的产物。