Hydrochloric Acid → 7-Methoxy-isoquinoline-N-oxide hydrochloride
反応式
[Cl:1]C1C=C(C=CC=1)C(OO)=[O:6].[CH3:12][O:13][C:14]1[CH:23]=[C:22]2[C:17]([CH:18]=[CH:19][N:20]=[CH:21]2)=[CH:16][CH:15]=1.CO.Cl>ClCCl.C(OCC)C>[ClH:1].[CH3:12][O:13][C:14]1[CH:23]=[C:22]2[C:17]([CH:18]=[CH:19][N+:20]([O-:6])=[CH:21]2)=[CH:16][CH:15]=1参加物
7
実験手順
At room temperature 58 g of m-chloroperoxybenzoic acid (purity 75%) were added in portions to a stirred solution of 7-methoxy-isoquinoline (35.9 g) in 500 mL of dichloromethane. Stirring was continued for 3 hours and subsequently methanol (400 mL) was added. The bulk was reduced to 300 mL and 325 mL of a saturated solution of hydrogen chloride in diethyl ether were added. Dilution with 600 mL of diethyl ether afforded precipitation of yellow crystals, which were separated by filtration, washed with chilled diethyl ether and dried in vacuo. Yield: 41.3 g (87%); m.p. 185-187° C.; (+)-FAB-MS: 176 (MH+-HCl).
後処理
- additionwere added
- customprecipitation of yellow crystals, which
- customwere separated by filtration
- washwashed with chilled diethyl ether
- customdried in vacuo
出典と根拠
- ORDレコード
- ord-f2505b98de844977a6b03d5c3ae24329
- 出典データセット
- uspto-grants-2002_09
- 特許番号
- US06444672B1
反応ノート
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