Ligandless Nickel-Catalyzed <i>Ortho</i>-Selective Directed Trifluoromethylthiolation of Aryl Chlorides and Bromides Using AgSCF<sub>3</sub>
作者:Tin Nguyen、Weiling Chiu、Xinying Wang、Madeleine O. Sattler、Jennifer A. Love
DOI:10.1021/acs.orglett.6b02689
日期:2016.11.4
A mild protocol for Ni-catalyzed trifluoromethylthiolation of aryl chlorides and bromides is described herein. The method utilizes AgSCF3 as an easily accessible nucleophilic trifluoromethylthiolating reagent and does not require any ligands or additives. Ortho-selectivity is achieved using a variety of directing groups such as imines, pyridines, and oxazolines for 24 examples in up to 95% yield.
Palladium-Catalyzed Trifluoromethylthiolation of Aryl C–H Bonds
作者:Chunfa Xu、Qilong Shen
DOI:10.1021/ol5006533
日期:2014.4.4
A method for monotrifluoromethylthiolation of arenes via palladium-catalyzed directed C–H bond activation was described. The reaction was compatible with a variety of functional groups. Initial mechanistic studies disclosed that the turnover limiting step of the catalytic cycle did not involve C–H activation.