Abstract A strategy to introduce the SCF 3 group through the Cu I-promoted reaction of diazo compounds with the nucleophilic AgSCF 3 trifluoromethylthiolation reagent was developed. Various diazo compounds were smoothly converted under mild conditions to form the C (sp 3)–SCF 3 bond. Mechanistically, migratory insertion of SCF 3-bearing Cu carbene intermediates is involved in this transformation.
