Hydroxyamine hydrochloride → HCID 73796369、化合物
反応式
Cl.[NH2:2][OH:3].[O:4]=[C:5]1[C:14]2[C:9](=[N:10][CH:11]=[CH:12][CH:13]=2)[O:8][C:7]2[CH:15]=[CH:16][C:17]([CH:19]=O)=[CH:18][C:6]1=2>N1C=CC=CC=1>[O:4]=[C:5]1[C:14]2[C:9](=[N:10][CH:11]=[CH:12][CH:13]=2)[O:8][C:7]2[CH:15]=[CH:16][C:17]([CH:19]=[N:2][OH:3])=[CH:18][C:6]1=2参加物
4
反応条件
- 温度
- 80 °C
実験手順
11 g of hydroxylamine hydrochloride is added to a suspension of 30 g of 5-oxo-5H-[1]benzopyrano[2,3-b]pyridine-7-carbaldehyde in 600 ml of pyridine, and the mixture is vigorously stirred at 80°C for 1 hour. After cooling, the crystals are filtered off, washed with water, and dried to give crude 5-oxo-5H-[1]benzopyrano[2,3-b]pyridine-7-carbaldehyde oxime melting at 254°-256°C with decomposition.
後処理
- temperatureAfter cooling
- filtrationthe crystals are filtered off
- washwashed with water
- customdried
出典と根拠
- ORDレコード
- ord-cadf2fd92c4b40f28adbe374093f1ea2
- 出典データセット
- uspto-grants-1976_01
- 特許番号
- US03931199
反応ノート
読み込み中…