Cesium fluoride → HCID 68326551、化合物

HRID 631843ノート

反応式

HRID 631843 の反応式
[CH2:1]([C:8]1[C:9](=[O:16])[NH:10][C:11](=[O:15])[NH:12][C:13]=1Cl)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CC1(C)C(C)(C)OB([C:25]2[CH2:30][CH2:29][CH:28]([C:31]3[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=3)[CH2:27][CH:26]=2)O1.[F-].[Cs+]>O1CCOCC1.O.[Cl-].[NH4+]>[CH2:1]([C:8]1[C:9](=[O:16])[NH:10][C:11](=[O:15])[NH:12][C:13]=1[C:34]1[CH2:35][CH2:36][CH:31]([C:28]2[CH:27]=[CH:26][CH:25]=[CH:30][CH:29]=2)[CH2:32][CH:33]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

7

反応物 3

HCID 25953Cesium fluorideHCID 112890924,4,5,5-Tetramethyl-2-(1,2,3,6-tetrahydro-[1,1'-biphenyl]-4-yl)-1,3,2-dioxaborolaneHCID 23648513HCID 23648513、化合物

生成物 1

HCID 68326551HCID 68326551、化合物収率 31.7%

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 25517Ammonium Chloride溶媒HCID 312751,4-Dioxane溶媒

反応条件

温度
140 °C

実験手順

A mixture of 5-benzyl-6-chloro-1H-pyrimidine-2,4-dione (WO006014394) (1.0 g), 4,4,5,5-tetramethyl-2-(4-phenylcyclohex-1-enyl)-[1,3,2]dioxaborolane (1.4 g), bis[di-tert-butyl(4-dimethylaminophenyl)phosphine]dichloropalladium(II) (0.06 g) and cesium fluoride (1.92 g) in 1,4-dioxane (18 mL) and water (2 mL) was heated at 140° C. in a microwave reactor for 20 minutes. The resulting mixture was diluted with saturated aqueous ammonium chloride and filtered to remove the precipitate. The filtrate was extracted with dichloromethane and the combined organic layers washed with water and brine, then dried over sodium sulfate and concentrated under reduced pressure. The resulting residue was purified by column chromatography on silica gel, eluting with a mixture of methanol and dichloromethane (0:1 to 1:20 by volume) to afford the title compound 2a as an off-white solid (0.48 g). LCMS (Method A): Rt=3.56 min. (M+H)+=359. 1H NMR (DMSO-D6): δ 11.06 (1H, s), 10.69 (1H, s), 7.23-7.21 (10H, m), 5.84-5.79 (1H, m), 3.61 (2H, s), 3.57 (1H, s), 2.77-2.67 (1H, m), 2.19-2.16 (3H, m), 1.84-1.81 (1H, m), 1.68-1.67 (1H, m).

後処理

  1. filtrationfiltered
  2. customto remove the precipitate
  3. extractionThe filtrate was extracted with dichloromethane
  4. washthe combined organic layers washed with water and brine
  5. dry with materialdried over sodium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe resulting residue was purified by column chromatography on silica gel
  8. washeluting with a mixture of methanol and dichloromethane (0:1 to 1:20 by volume)

出典と根拠

ORDレコード
ord-e3edab9a7f684295a0889f6e1ab4f621
出典データセット
uspto-grants-2016_04
特許番号
US09321736B2

反応ノート

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