反应详情

Oxalyl chloride (10.3 cm3) was added dropwise to a stirred solution of 2-methoxyquinoline-6-carboxylic acid (12.0 g) in dichloromethane (100 cm3) and DMF (0.1 g) at 0°. The mixture was warmed to room temperature and after 2 hours volatile material was removed in vacuo. The residue was taken into dichloromethane (100 cm3), cooled to 0° and treated cautiously with aqueous ammonia solution (30 cm3 of S.G. 0.880). After 2 hours the mixture was concentrated in vacuo and the solid residue was recrystallised from isopropanol to afford 2-methoxyquinoline-6-carboxylic acid amide, m.p. 212°-214°, (7.9 g).

1. customwas removed in vacuo
2. temperaturecooled to 0°
3. additiontreated cautiously with aqueous ammonia solution (30 cm3 of S.G. 0.880)
4. concentrationAfter 2 hours the mixture was concentrated in vacuo
5. customthe solid residue was recrystallised from isopropanol