α-Thiocarbonyl synthesis viathe FeII-catalyzed insertion reaction of α-diazocarbonyls into S–H bonds

Fe(OTf)(2) was used to catalyze the insertion reaction of -diazocarbonyls into S-H bonds at 40 degrees C. A wide range of -thioesters were obtained in yields up to 96% within 24-48 h from their corresponding -diazoesters. A variety of thiols were used for the unprecedented insertion reaction with an -diazoketone, leading to yields up to 85% of -thioketones.