作者:Wei Yueting、Liu Yali、He Jing、Li Xuezhen、Liu Ping、Zhang Jie
DOI:10.1016/j.tet.2020.131646
日期:2020.11
An efficient TBAI (tetrabutylammonium iodide)-mediated C-H sulfenylation of arenes with arylsulfonyl hydrazides in dipropylene glycol dimethyl ether (DPDME) was described. Various electron-rich arenes were applicable in the reaction, such as naphthylamine, naphthol, aniline, indole, pyrrole, and imidaz o [1,2, 2(a)] pyridine. A wide range of the aryl sulfides were obtained with good functional group
描述了在二丙二醇二甲醚(DPDME)中有效的TBAI(碘化四丁基铵)介导的芳烃与芳基磺酰肼的CH亚磺酰化反应。各种富电子芳烃可用于反应中,例如萘胺,萘酚,苯胺,吲哚,吡咯和咪唑基[1,2,2(a)]吡啶。获得了具有良好官能团耐受性的各种芳基硫醚。该方法具有绿色反应条件(无臭且易于获得的硫试剂,可循环利用的TBAI和DPDME作为溶剂)和广泛的底物范围。合成潜力通过克级合成和下游转化得到证明。机理研究表明,该反应是通过亲电取代过程实现的,二芳基二硫化物可能是主要中间体。