“…Compound ( Various derivatives of 1,3,4-thiadiazoline (CCIV) or (CCV) were obtained starting from the thiosemicarbazones of the ketone (XVI) [97,98,162] 4-(p-Tolyl)-l,3,5-dithiazol-2-one is formed with a yield of 60-70% when a mixture of the thioketone (XXXII) and 5-(p-tolyl)-l,3,4-oxathiazol-2-one is boiled in xylene [133].…”