反应详情

温度

50 °C

In a 250 mL round bottomed flask were placed 2-bromo-4-(4-chlorobenzyl)-N-[(1Z)-(dimethylamino)methylene]-1,3-thiazole-5-carboxamide and acetic acid (50 mL, 900 mmol). Hydrazine hydrate (490 uL, 10 mmol) was added and the mixture was stirred for 1 h at 50° C. The mixture was allowed to cool to rt, then was concentrated under reduced pressure to obtain 3-[2-bromo-4-(4-chlorobenzyl)-1,3-thiazol-5-yl]-4H-1,2,4-triazole as a yellowish off-white crystalline solid. The crude material was used in the next step without further purification. LC/MS (FA) ES+ 357.

1. customIn a 250 mL round bottomed flask were placed
2. temperatureto cool to rt
3. concentrationwas concentrated under reduced pressure