Abstract Reactions of ethylenedithioglycol (ETG) with Na 2 CO 3, K 2 CO 3, and Cs 2 CO 3 provided the oligothiaethylenethioglycols (nETG): di-(DETG), tri-(TrETG), tetra-(TETG), and pentathiaethylenethioglycol (PETG), along with higher polymers. The most efficient carbonate was K 2 CO 3 and reactions using DETG and TrETG as starting materials—or their mixtures—were also found to afford similar species. This largely unknown ...