Thiazole derivatives as vulcanization accelerators. I. Reaction of carbon disulfide, sulfur, and thiocarbanilide was written by Kimijima, Takuzo;Miyama, Shunichi. And the article was included in Kogyo Kagaku Zasshi in 1942.COA of Formula: C13H10N2S This article mentions the following:
A mixture of 231 g. thiocarbanilide, 67.5 g. S, and 83.6 g. CS2 was heated in an autoclave at 180-260° for 6 hrs. to obtain mercaptobenzothiazole. The best temperature was 220°, at which the yield was 88%. At lower temperatures, anilidobenzothiazole was the chief product. The same was true when the mixture was heated at higher temperatures for a short time. When the reaction temperature was too high, benzothiazole was formed at the expense of mercaptobenzothiazole. In the experiment, the researchers used many compounds, for example, N-Phenylbenzo[d]thiazol-2-amine (cas: 1843-21-6COA of Formula: C13H10N2S).
N-Phenylbenzo[d]thiazol-2-amine (cas: 1843-21-6) belongs to thiazole derivatives. Thiazoles are a class of five-membered rings containing nitrogen and sulfur with excellent antitumor, antiviral and antibiotic activities. Thiazole sulfonation occurs only under forcing conditions: the action of oleum at 250 °C for 3 hours in the presence of mercury(II) sulfate leads to 65% formation of 5-thiazole sulfonic acid.COA of Formula: C13H10N2S
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica