反应详情

Under a nitrogen atmosphere 2.30 g (7.12 mmol) 6-(2,6-dichloro-pyridine-4-carbonyl)-4-methyl-3H-benzoxazol-2-one in 10 mL DMF were combined at 0° C. with 310 mg (7.10 mmol) sodium hydride (55%, suspension in mineral oil). The reaction mixture was stirred for 30 min at RT. Then 0.44 mL (7.10 mmol) iodomethane were added and the mixture was stirred overnight at RT. The reaction mixture was poured onto water and the precipitated product was suction filtered, washed with water and dried.

1. stirringthe mixture was stirred overnight at RT
2. additionThe reaction mixture was poured onto water
3. filtrationfiltered
4. washwashed with water
5. customdried