Acetonitrile → 8-benzyl-2-bromo-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amine

HRID 518083ノート

反応式

HRID 518083 の反応式
[CH2:1]([N:8]1[CH2:14][C:13]2[N:15]=[CH:16][C:17]([N:19]([CH3:23])[CH:20]([CH3:22])[CH3:21])=[N:18][C:12]=2[O:11][CH2:10][CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Br:24]N1C(=O)CCC1=O.C(#N)C>O>[CH2:1]([N:8]1[CH2:14][C:13]2[N:15]=[C:16]([Br:24])[C:17]([N:19]([CH3:23])[CH:20]([CH3:21])[CH3:22])=[N:18][C:12]=2[O:11][CH2:10][CH2:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

5

反応物 3

HCID 6342AcetonitrileHCID 67184N-bromobutanimideHCID 669936178-benzyl-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amine

生成物 1

HCID 866490048-benzyl-2-bromo-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amine収率 20%

試薬・触媒・溶媒 1

HCID 962Water溶媒

反応条件

温度
50 °C

実験手順

A mixture of 8-benzyl-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amine (500 mg), N-bromosuccinimide (342 mg) and acetonitrile (10 mL) was stirred at room temperature for 16 hr and at 50° C. for 24 hr. Water was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over sodium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient: 0-40% ethyl acetate/hexane) to give the title compound (122 mg, 20%) as a colorless oil.

後処理

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with water and saturated brine
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (solvent gradient: 0-40% ethyl acetate/hexane)

出典と根拠

ORDレコード
ord-d133dc29d61a445390d970adba983113
出典データセット
uspto-grants-2015_08
特許番号
US09115139B2

反応ノート

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