Potassium Carbonate → 6-bromo-7-phenyl-1-(2,2,2-trifluoroethyl)-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one

HRID 1509324ノート

反応式

HRID 1509324 の反応式
[Br:1][C:2]1[C:3]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[CH:4][C:5]2[NH:10][C:9](=[O:11])[CH2:8][O:7][C:6]=2[N:12]=1.C(=O)([O-])[O-].[K+].[K+].[F:25][C:26]([F:30])([F:29])[CH2:27]I>CN(C=O)C.O>[Br:1][C:2]1[C:3]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[CH:4][C:5]2[N:10]([CH2:27][C:26]([F:30])([F:29])[F:25])[C:9](=[O:11])[CH2:8][O:7][C:6]=2[N:12]=1

参加物

6

反応物 3

HCID 11430Potassium CarbonateHCID 677091,1,1-Trifluoro-2-iodoethaneHCID 866836506-bromo-7-phenyl-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one

生成物 1

HCID 866836786-bromo-7-phenyl-1-(2,2,2-trifluoroethyl)-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one収率 33.5%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

反応条件

温度
70 °C

実験手順

A mixture of 6-bromo-7-phenyl-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one (0.4 g, 1.311 mmol), potassium carbonate (0.544 g, 3.93 mmol) and 1,1,1-trifluoro-2-iodoethane (0.826 g, 3.93 mmol) in DMF (2 ml) was heated at 70° C. under stirring for 18 h The reaction mixture was cooled down and diluted with water (15 ml) and extracted with DCM (15 mlX3). The combined organic phase was washed with water (25 ml) and dried with Na2SO4 and concentrated. The residue was purified by column chromatography (biotage 25 g) eluted with ethyl acetate/cyclohexane 0-60% to afford product 6-bromo-7-phenyl-1-(2,2,2-trifluoroethyl)-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one (0.17 g) 1H NMR (500 MHz, CDCl3) 7.45-7.50 (m, 3H), 7.38-7.40 (m, 2H), 7.28 (s, 1H), 4.94 (s, 2H), 4.55 (q, 2H).

後処理

  1. temperaturewas cooled down
  2. extractionextracted with DCM (15 mlX3)
  3. washThe combined organic phase was washed with water (25 ml)
  4. dry with materialdried with Na2SO4
  5. concentrationconcentrated
  6. customThe residue was purified by column chromatography (biotage 25 g)
  7. washeluted with ethyl acetate/cyclohexane 0-60%

出典と根拠

ORDレコード
ord-5acf97ac516640768613fb245a0e4829
出典データセット
uspto-grants-2015_12
特許番号
US09221838B2

反応ノート

読み込み中…