3,4-Alkylenedioxy Ring Formation via Double Mitsunobu Reactions: An Efficient Route for the Synthesis of 3,4-Ethylenedioxythiophene (EDOT) and 3,4-Propylenedioxythiophene (ProDOT) Derivatives as Monomers for Electron-Rich Conducting Polymers.

3,4-Alkylenedioxy ring functionalized thiophenes (XDOT’s) have been synthesized by double Mitsunobu reactions to yield precursors to monomers for conjugated and electrically conducting polymers, including the commercially important 3,4-ethylenedioxythiophene (EDOT).