Synthesis of Cyclic Trithiocarbonates from Carbon Disulfide and Propargyl Alcohols under Mild Conditions

A versatile method for the synthesis of cyclic trithiocarbonates has been successfully developed from readily synthesized propargyl alcohols and easily accessible carbon disulfide (CS2), where terminal and nonterminal propargyl alkynols are compatible with this methodology. The developed protocol features simple, mild, atom-economic, and transition-metal-free reaction conditions resulting in the corresponding cyclic trithiocarbonates in moderate to excellent yields.