Oxidation of quinoxalineaminothiol with SCl2 or S2Cl2/Cl2 affords a series of compounds based on the quinoxaline-1, 2, 3-dithiazole framework QDTA. Under highly oxidizing conditions, the 1, 2, 3-dithiazolyl ring is opened to afford the acyclic dichlorosulfimino- sulfenyl chlorides Cl x-QDTA-Cl3 (x= 0, 1, 2). Reduction of these" trichloro" compounds leads to ring closure. For x= 2, reduction using S2Cl2 affords the dithiazolylium chloride [ ...
