Regioselective C–H Thioarylation of Electron-Rich Arenes by Iron(III) Triflimide Catalysis
作者:Amy C. Dodds、Andrew Sutherland
DOI:10.1021/acs.joc.1c00448
日期:2021.4.16
iron(III) triflimide allowed the efficient thiolation of a range of arenes, including anisoles, phenols, acetanilides, and N-heterocycles. The method was applicable for the late-stage thiolation of tyrosine and tryptophan derivatives and was used as the key step for the synthesis of pharmaceutically relevant biaryl sulfur-containing compounds such as the antibiotic dapsone and the antidepressant vortioxetine
描述了一种使用铁(III)催化制备不对称联芳基硫化物的温和区域选择性方法。的活化ñ -使用强大的路易斯酸铁(III)三氟甲(芳硫基)琥珀酰亚胺允许的范围芳烃,包括苯甲醚,酚,乙酰苯胺的有效硫醇化,并Ñ -heterocycles。该方法适用于酪氨酸和色氨酸衍生物的后期硫醇化,并用作合成药学上相关的联芳基含硫化合物(如抗生素氨苯砜和抗抑郁药vortioxetine)的关键步骤。动力学研究表明,当N带有电子缺陷芳烃的-(芳硫基)琥珀酰亚胺完全由三氟甲磺酸铁(III)催化硫代芳基化,带有富电子芳烃的N-(芳硫基)琥珀酰亚胺表现出路易斯基本产物促进的自催化机理。