A facilepreparation of allylictrifluoromethylthioethers was achieved by using a copper reagent. The reaction of (bpy)Cu(SCF3) with various allylicbromides afforded the desired trifluoromethylthiolation products in good to excellent yields with high stereo‐ and regioselectivity. Common functional groups such as alkyl, alkoxy, trifluoromethyl, nitro, halides and geranyl are well tolerated.
An efficient Ru-catalyzed regioselective allylictrifluoromethylthiolation reaction of allylic carbonates was developed. The linear allylictrifluoromethylthioethers were obtained in 52–91% yields. Mechanistic investigation revealed that this reaction proceeds via a double allylictrifluoromethylthiolation sequence.