With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1477-42-5,4-Methylbenzo[d]thiazol-2-amine,as a common compound, the synthetic route is as follows.,1477-42-5
Step 1: 4-methyl-3H-benzothiazol-2-one 5.00 g (30.5 mmol) 2-amino-4-methylbenzothiazole in 15.0 mL formic acid, 6.10 mL glacial acetic acid and 112 mL conc. hydrochloric acid were cooled to -5 C. with stirring and slowly combined with a solution of 2.10 g (30.5 mmol) sodium nitrite in 5.0 mL water. The reaction mixture was stirred for 20 min at this temperature, then heated to RT and then refluxed overnight. The cooled mixture was then mixed with water and extracted several times with EtOAc. The combined organic phases were washed with saturated sodium chloride solution, dried on sodium sulphate, filtered and the filtrate was evaporated down. Yield: 3.70 g (74% of theoretical) ESI-MS: m/z=164 (M-H)-
The synthetic route of 1477-42-5 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; US2011/59954; (2011); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica