Abstract The treatment of mercaptothioethers CH3 (SCH2) nSH, n= 1, 2, 1, 2 with equivalent amounts of iodine and triethyl amine leads to the formation of 2.4. 5.7-tetrathiaoctane 3 and 2.4. 6.7. 9.11-hexathiadodecane 4. Oxidation of ethanedithiol-1.2 5 leads to polyethylene disulfide 6, 1.2. 5.6-tetrathiacyclooctane 7 and 1.2. 5.6. 9.10. 13.14- octathiacyclohexadecane 8, whereas bis-(mercaptomethyl)-sulfide 9 is converted to ...