Jagadeesh, Rajenahally V. et al. published their research in Synthetic Communications in 2011 | CAS: 68867-17-4

Benzothiazole-5-carboxylic acid (cas: 68867-17-4) belongs to thiazole derivatives. The thiazole ring is notable as a component of the vitamin thiamine (B1).Various laboratory methods exist for the organic synthesis of thiazoles. For example, 2,4-dimethylthiazole is synthesized from thioacetamide and chloroacetone.Formula: C8H5NO2S

The efficient palladium-catalyzed selective synthesis of benzenesulfonic acids was written by Jagadeesh, Rajenahally V.;Sandhya, Y. Sree;Karthikeyan, P.;Reddy, S. Sudhakar;Reddy, P. Pradeep Kumar;Kumar, M. Viniod;Charan, K. T. Prabhu;Narender, R.;Bhagat, P. R.. And the article was included in Synthetic Communications in 2011.Formula: C8H5NO2S This article mentions the following:

Palladium-catalyzed synthetic methodol. was developed for the synthesis of 2-aminobenzenesulfonic acids from benzothiazoles in good to excellent yields using chloramine-B in alk. (pH 12) acetonitrile-water (1:1) at 80 °C. In the experiment, the researchers used many compounds, for example, Benzothiazole-5-carboxylic acid (cas: 68867-17-4Formula: C8H5NO2S).

Benzothiazole-5-carboxylic acid (cas: 68867-17-4) belongs to thiazole derivatives. The thiazole ring is notable as a component of the vitamin thiamine (B1).Various laboratory methods exist for the organic synthesis of thiazoles. For example, 2,4-dimethylthiazole is synthesized from thioacetamide and chloroacetone.Formula: C8H5NO2S

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica