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 (CS 2 ), 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.