Hydrogen Bromide → 9-hydroxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrobromide
反応式
C[O:2][C:3]1[CH:4]=[C:5]([CH2:9][CH2:10][NH:11][CH2:12][CH:13]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)O)[CH:6]=[CH:7][CH:8]=1.[BrH:21]>>[BrH:21].[OH:2][C:3]1[C:4]2[CH:13]([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)[CH2:12][NH:11][CH2:10][CH2:9][C:5]=2[CH:6]=[CH:7][CH:8]=1参加物
3
実験手順
A solution of 3.5 g. (0.0129 mol) of N-[2-(3-methoxyphenyl)ethyl]-2-phenyl-2-hydroxyethylamine in 40 ml. of 48% hydrobromic acid is refluxed for two hours and then concentrated to dryness. The solid residue (equal mixture of 7-hydroxy and 9-hydroxy benzazepines) is chromatographed on a silica gel column, eluting with methanol in chloroform to first remove the 7-hydroxy isomer and then to yield the product 9-hydroxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrobromide, m.p. 134°-150° C. (int.).
後処理
- concentrationconcentrated to dryness
- additionThe solid residue (equal mixture of 7-hydroxy and 9-hydroxy benzazepines)
- customis chromatographed on a silica gel column
- washeluting with methanol in chloroform
- customto first remove the 7-hydroxy isomer
出典と根拠
- ORDレコード
- ord-5dfade4f6c9a4d32af58bcc735d3b0a9
- 出典データセット
- uspto-grants-1977_03
- 特許番号
- US04011319
反応ノート
読み込み中…