Bromoacetyl bromide → HCID 46916455、化合物

HRID 2045933ノート

反応式

HRID 2045933 の反応式
[N:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[N:4]=[CH:3][C:2]=1[C:11]1[CH:12]=[C:13]([NH2:17])[CH:14]=[CH:15][CH:16]=1.[Br:18][CH2:19][C:20](Br)=[O:21].C(N(C(C)C)CC)(C)C>C1COCC1.C(OCC)(=O)C>[Br:18][CH2:19][C:20]([NH:17][C:13]1[CH:14]=[CH:15][CH:16]=[C:11]([C:2]2[CH:3]=[N:4][C:5]3[C:10](=[CH:9][CH:8]=[CH:7][CH:6]=3)[N:1]=2)[CH:12]=1)=[O:21]

参加物

6

反応物 3

HCID 61147Bromoacetyl bromideHCID 81531DiisopropylethylamineHCID 8072643-(2-Quinoxalinyl)aniline

生成物 1

HCID 46916455HCID 46916455、化合物収率 22.6%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of (3-quinoxalin-2-ylphenyl)amine (2 g, 9.04 mmol) in THF (50 mL), bromoacetyl bromide (0.83 mL, 9.5 mmol) was added, followed by diisopropylethylamine (DIEA, 1.8 mL, 10.85 mmol), at room temperature. The reaction mixture was stirred at room temperature for 24 hrs, the slurry was diluted with ethyl acetate and the organic phase was washed with water (50 mL). The insoluble solid was filtered and analysed to afford 2-bromo-N-(3-(quinoxalin-2-yl)phenyl)acetamide (700 mg, 22% yield). The mother liquer was evaporated in vacuo to afford a second batch of 2-bromo-N-(3-(quinoxalin-2-yl)phenyl)acetamide (1.8 g, 58% yield). LCMS calculated for C18H15N3O (M+H): 290.33. found 290.24. 1H-NMR (DMSO-d6, 400 Mhz) δH: 10.62 (1H, br.), 9.52 (1H, s), 8.55 (1H, m), 8.12-8.18 (2H, m), 8.05-8.08 (1H, m), 7.80-7.95 (3H, m), 7.55-7.60 (1H, m), 4.12 (2H, s).

後処理

  1. washthe organic phase was washed with water (50 mL)
  2. filtrationThe insoluble solid was filtered

出典と根拠

ORDレコード
ord-463ad31e067a4c068767d7b3c58be48b
出典データセット
uspto-grants-2013_11
特許番号
US08592415B2

反応ノート

読み込み中…