Cesium carbonate → ethyl {(1S)-5-[3-(4-bromo-2-methoxyphenoxy)propoxy]-2,3-dihydro-1H-inden-1-yl}acetate

HRID 603412ノート

反応式

HRID 603412 の反応式
Br[CH2:2][CH2:3][CH2:4][O:5][C:6]1[CH:7]=[C:8]2[C:12](=[CH:13][CH:14]=1)[C@H:11]([CH2:15][C:16]([O:18][CH2:19][CH3:20])=[O:17])[CH2:10][CH2:9]2.[Br:21][C:22]1[CH:27]=[CH:26][C:25]([OH:28])=[C:24]([O:29][CH3:30])[CH:23]=1.C([O-])([O-])=O.[Cs+].[Cs+]>CN(C=O)C.O>[Br:21][C:22]1[CH:27]=[CH:26][C:25]([O:28][CH2:2][CH2:3][CH2:4][O:5][C:6]2[CH:7]=[C:8]3[C:12](=[CH:13][CH:14]=2)[C@H:11]([CH2:15][C:16]([O:18][CH2:19][CH3:20])=[O:17])[CH2:10][CH2:9]3)=[C:24]([O:29][CH3:30])[CH:23]=1

参加物

6

反応物 3

HCID 10796Cesium carbonateHCID 2622344-Bromo-2-methoxyphenolHCID 16110497ethyl[(1S)-5-(3-bromopropoxy)-2,3-dihydro-1H-inden-1-yl]acetate

生成物 1

HCID 59300414ethyl {(1S)-5-[3-(4-bromo-2-methoxyphenoxy)propoxy]-2,3-dihydro-1H-inden-1-yl}acetate

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

反応条件

温度
80 °C

実験手順

To a solution of ethyl [(1S)-5-(3-bromopropoxy)-2,3-dihydro-1H-inden-1-yl]acetate (1.4 g, 4.10 mmol) (Example 45) in DMF (130 mL, containing 1 vol % water) was added 4-bromo-2-methoxyphenol (832.9 mg, 4.10 mmol) followed by Cs2CO3 (2.66 g, 8.18 mmol). The reaction mixture was heated for 12 h at 80° C. Upon cooling to rt, the reaction mixture was diluted with water and extracted with EtOAc. The combined organic layers were dried over MgSO4, filtered, and concentrated under reduced pressure. The crude material was purified by silica gel flash chromatography (gradient 1:4 to 1:1 (v/v) EtOAc/hexane) to give the product as a colorless oil. 1H NMR (400 MHz, acetone-d6) δ 7.11-7.07 (m, 2H), 7.03-7.01 (m, 1H), 6.94-6.92 (m, 1H), 6.82-6.81 (m, 1H), 6.75-6.72 (m, 1H), 4.20-4.11 (m, 6H), 3.84 (s, 3H), 3.48-3.44 (m, 1H), 2.89-2.69 (m, 3H), 2.42-2.30 (m, 2H), 2.07 (q, 2H), 1.75-1.70 (m, 1H), 1.25 (t, 3H).

後処理

  1. temperatureUpon cooling to rt
  2. extractionextracted with EtOAc
  3. dry with materialThe combined organic layers were dried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe crude material was purified by silica gel flash chromatography (gradient 1:4 to 1:1 (v/v) EtOAc/hexane)

出典と根拠

ORDレコード
ord-5310d2ec6e914e068e5bd773e2b2882a
出典データセット
uspto-grants-2011_03
特許番号
US07906653B2

反応ノート

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