Process for the production of 2-amino-4-methylbenzothiazole

Details Process for the production of 2-amino-4-methylbenzothiazole Process for the production of 2-amino-4-methylbenzothiazole

C - Chemistry, Metallurgy

07

D

260/309.3

C07D 277/82 (2006.01)

Patent

CA 1127650

PROCESS FOR THE PRODUCTION OF 2-AMINO-4-METHYL- BENZOTHIAZOLE ABSTRACT OF THE DISCLOSURE Process for the production of 2-amino-4-methyl- benzothiazole from o-tolylthiourea using chlorine as a ring closure reactant. The reaction is carried out without a catalyst. By the use of methylene chloride as a solvent, no ring chlorination takes place. The product is removed from the resultant HCl-salt form by treatment with sodium hydroxide solution.

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