Cesium carbonate → HCID 57586581、化合物

HRID 420358ノート

反応式

HRID 420358 の反応式
[CH2:1]([O:3][C:4](=[O:29])[CH2:5][CH2:6][CH2:7][O:8][C:9]1[CH:14]=[CH:13][CH:12]=[C:11]([CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][SH:21])[C:10]=1[CH2:22][CH2:23][C:24]([O:26][CH2:27][CH3:28])=[O:25])[CH3:2].[Br:30][C:31]1[CH:32]=[C:33]([N+]([O-])=O)[CH:34]=[C:35]([Br:37])[CH:36]=1.C([O-])([O-])=O.[Cs+].[Cs+]>CS(C)=O.CCOC(C)=O>[CH2:1]([O:3][C:4](=[O:29])[CH2:5][CH2:6][CH2:7][O:8][C:9]1[CH:14]=[CH:13][CH:12]=[C:11]([CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][S:21][C:33]2[CH:32]=[C:31]([Br:30])[CH:36]=[C:35]([Br:37])[CH:34]=2)[C:10]=1[CH2:22][CH2:23][C:24]([O:26][CH2:27][CH3:28])=[O:25])[CH3:2]

参加物

6

反応物 3

HCID 10796Cesium carbonateHCID 2387111,3-dibromo-5-nitrobenzeneHCID 57586501HCID 57586501、化合物

生成物 1

HCID 57586581HCID 57586581、化合物収率 72%

試薬・触媒・溶媒 2

HCID 679Dimethyl Sulfoxide溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
90 °C

実験手順

To a solution of 4-[2-(2-ethoxycarbonyl-ethyl)-3-(6-mercapto-hexyl)-phenoxy]-butyric acid ethyl ester (162 mg, 0.388 mmol) in DMSO (5 mL), 3,5-dibromonitrobenzene (129 mg, 0.46 mmol) and Cs2CO3 (150 mg, 0.46 mmol) were added and stirred at 90° C. for 3 hrs. At this time, the reaction mixture was diluted with EtOAc (200 mL) and washed with water (100 mL). The EtOAc layer was washed), brine and then dried over Na2SO4. This mixture was filtered and the filtrate was concentrated. The solvent was removed in vacuo to afford an oil. This oil was purified using FCC (15% EtOAc/Hex) to provide a colorless oil (180 mg, yield 72%). 1H NMR (CDCl3): □ 7.42 (s, 1H), 7.32 (s, 2H), 7.09 (dd, 1H), 6.75 (d, 1H), 6.69 (d, 1H), 4.14 (m, 4H), 3.99 (t, 2H), 2.98-2.89 (m, 4H), 2.64-2.46 (m, 6H), 2.13 (m, 2H), 1.67-1.39 (m, 8H), 1.27 (m, 6H).

後処理

  1. washwashed with water (100 mL)
  2. washThe EtOAc layer was washed), brine
  3. dry with materialdried over Na2SO4
  4. filtrationThis mixture was filtered
  5. concentrationthe filtrate was concentrated
  6. customThe solvent was removed in vacuo
  7. customto afford an oil
  8. customThis oil was purified

出典と根拠

ORDレコード
ord-39450b04c3fd4f94bb56e2657a09fc82
出典データセット
uspto-grants-2012_01
特許番号
US08093385B2

反応ノート

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