Wang D, Carlton CG, Tayu M, McDouall JJW, Perry GJP, Procter DJ. Trifluoromethyl Sulfoxides: Reagents for Metal-Free C-H Trifluoromethylthiolation.
Angew Chem Int Ed Engl 2020;
59:15918-15922. [PMID:
32463942 PMCID:
PMC7540508 DOI:
10.1002/anie.202005531]
[Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/21/2020] [Indexed: 12/22/2022]
Abstract
Trifluoromethyl sulfoxides are a new class of trifluoromethylthiolating reagent. The sulfoxides engage in metal-free C-H trifluoromethylthiolation with a range of (hetero)arenes. The method is also applicable to the functionalization of important compound classes, such as ligand derivatives and polyaromatics, and in the late-stage trifluoromethylthiolation of medicines and agrochemicals. The isolation and characterization of a sulfonium salt intermediate supports an interrupted Pummerer reaction mechanism.
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