Cesium carbonate → HCID 178450706、化合物

HRID 1849676ノート

反応式

HRID 1849676 の反応式
[CH3:1][C@H:2]1[CH2:7][CH2:6][C@H:5]([CH2:8][OH:9])[CH2:4][CH2:3]1.[Cl:10][C:11]1[C:12](F)=[CH:13][C:14]([F:24])=[C:15]([CH:23]=1)[C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17].C(=O)([O-])[O-].[Cs+].[Cs+]>CS(C)=O.O>[Cl:10][C:11]1[C:12]([O:9][CH2:8][C@H:5]2[CH2:6][CH2:7][C@H:2]([CH3:1])[CH2:3][CH2:4]2)=[CH:13][C:14]([F:24])=[C:15]([CH:23]=1)[C:16]([O:18][C:19]([CH3:20])([CH3:21])[CH3:22])=[O:17]

参加物

6

反応物 3

HCID 10796Cesium carbonateHCID 58042499Tert-butyl 5-chloro-2,4-difluorobenzoateHCID 178461264HCID 178461264、化合物

生成物 1

HCID 178450706HCID 178450706、化合物収率 78%

試薬・触媒・溶媒 2

HCID 679Dimethyl Sulfoxide溶媒HCID 962Water溶媒

反応条件

温度
70 °C

実験手順

To a solution of trans-(4-methylcyclohexyl)methanol (3.00 g, 23.4 mmol) and tert-butyl 5-chloro-2,4-difluorobenzoate (6.43 g, 25.90 mmol) in anhydrous dimethylsulfoxide (40 mL) was added cesium carbonate (16.11 g, 49.44 mmol). The mixture was heated at 70° C. for 96 hours, and then cooled to ambient temperature; diluted with water (300 mL) and extracted with ethyl acetate (4×100 mL). The combined organic layers were washed with water (100 mL) and brine (100 mL); dried over anhydrous sodium sulfate; filtered and concentrated in vacuo. The residue was purified by column chromatography (0% to 10% ethyl acetate in hexanes gradient) to give the title compound (6.48 g 78%): 1H NMR (300 MHz, CDCl3) δ 7.87 (d, J=7.7 Hz, 1H), 6.61 (d, J=12.3 Hz, 1H), 3.82 (d, J=6.2 Hz, 2H), 1.91-1.73 (m, 8H), 1.56 (s, 9H), 1.17-0.96 (m, 5H).

後処理

  1. temperaturecooled to ambient temperature
  2. extractionextracted with ethyl acetate (4×100 mL)
  3. washThe combined organic layers were washed with water (100 mL) and brine (100 mL)
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by column chromatography (0% to 10% ethyl acetate in hexanes gradient)

出典と根拠

ORDレコード
ord-35ed5711d97642cf95628581928abed6
出典データセット
uspto-grants-2015_02
特許番号
US08952169B2

反応ノート

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