Water → HCID 21388672、化合物

反応式

[NH2:1][C:2]1[C:7]([Cl:8])=[CH:6][N:5]=[C:4]([O:9][CH2:10][CH2:11][OH:12])[C:3]=1[Cl:13].[C:14](Cl)(=[O:16])[CH3:15].O>N1C=CC=CC=1>[NH2:1][C:2]1[C:7]([Cl:8])=[CH:6][N:5]=[C:4]([O:9][CH2:10][CH2:11][O:12][C:14](=[O:16])[CH3:15])[C:3]=1[Cl:13]

参加物

実験手順

To a solution of 22.3 grams (0.1 mole) of 4-amino-3,5-dichloro-2-(2-hydroxyethoxy)pyridine (prepared by the method of Example I) dissolved in 150 milliliters of pyridine was added dropwise, with agitation, 8.7 grams (0.11 mole) of acetylchloride. The mixture was brought to reflux (~100° C.) and held at this temperature for 1 hour. The mixture was cooled to room temperature and poured into water. The oil which separated was extracted with methylene chloride, washed with 200 milliliters of water and dried over potassium carbonate. The solvent was evaporated under reduced pressure and the 4-amino-3,5-dichloro-2-(2-acetoxyethoxy)pyridine product was recovered by recrystallization from hexane. The product was recovered in a yield of 13.7 grams which melts at 76°-77° C.