Hydrochloric Acid → (5-Chloro-3-phenyl-1-benzofuran-2-yl)methanamine hydrochloride
反応式
[C:1]([C:3]1[O:4][C:5]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][C:6]=2[C:7]=1[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)#[N:2].B.Cl>O1CCCC1>[ClH:18].[NH2:2][CH2:1][C:3]1[O:4][C:5]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][C:6]=2[C:7]=1[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1参加物
5
実験手順
Treat 2.0 g. 2-cyano-5-chloro-3-phenylbenzofuran (0.008 mole) in 30 ml of tetrahydrofuran with 18 ml of borane in tetrahydrofuran (1 m solution). Reflux for 2 hours. Cool, add 10 ml of 10% hydrochloric acid and reflux for 1/2 hour. Evaporate the solution to dryness. Dissolve the residue in 50 ml of ethanol. Add 30 ml of ethanol saturated with hydrogen chloride. Dry the precipitate obtained to yield the title compound; m.p. 254°-256°.
後処理
- additionTreat 2.0 g
- temperatureReflux for 2 hours
- temperatureCool
- temperaturereflux for 1/2 hour
- customEvaporate the solution to dryness
- dissolutionDissolve the residue in 50 ml of ethanol
- additionAdd 30 ml of ethanol saturated with hydrogen chloride
- customDry the precipitate
- customobtained
出典と根拠
- ORDレコード
- ord-02cf2179bba7498a9e959b46be91ec3b
- 出典データセット
- uspto-grants-1976_12
- 特許番号
- US03996159
反応ノート
読み込み中…