2000 thio compounds thio compounds (benzene compounds) Q 0590 50 -101 Cathodic Reduction of O-Ethyl S-Phenacyl Dithiocarbonate. -The cathodic reduction of (I) yields compounds (II) and (III) through an Eschenmoser sulfide contraction process with an electrogenerated base along with compounds (IV) and (V). -(PICAZO, O.; BATANERO, B.; BARBA, F.; J.