Sodium Carbonate → (3E)-5,6-difluoro-3-[4-(6-fluoropyridin-3-yl)-5,5-dimethylfuran-2(5H)-ylidene]-1,3-dihydro-2H-indol-2-one

HRID 537937노트

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HRID 537937 반응식
O1CCOCC1.Br[C:8]1[C:12]([CH3:14])([CH3:13])[O:11]/[C:10](=[C:15]2/[C:16](=[O:26])[NH:17][C:18]3[C:23]/2=[CH:22][C:21]([F:24])=[C:20]([F:25])[CH:19]=3)/[CH:9]=1.[F:27][C:28]1[N:33]=[CH:32][C:31](B(O)O)=[CH:30][CH:29]=1.C([O-])([O-])=O.[Na+].[Na+]>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.O>[F:24][C:21]1[CH:22]=[C:23]2[C:18](=[CH:19][C:20]=1[F:25])[NH:17][C:16](=[O:26])/[C:15]/2=[C:10]1/[O:11][C:12]([CH3:14])([CH3:13])[C:8]([C:31]2[CH:32]=[N:33][C:28]([F:27])=[CH:29][CH:30]=2)=[CH:9]/1

참가 물질

7

반응물 4

HCID 10340Sodium CarbonateHCID 312751,4-DioxaneHCID 2783397(6-Fluoropyridin-3-yl)boronic acidHCID 58926007(3E)-3-(4-bromo-5,5-dimethylfuran-2(5H)-ylidene)-5,6-difluoro-1,3-dihydro-2H-indol-2-one

생성물 1

HCID 58926319(3E)-5,6-difluoro-3-[4-(6-fluoropyridin-3-yl)-5,5-dimethylfuran-2(5H)-ylidene]-1,3-dihydro-2H-indol-2-one수율 38.1%

시약·촉매·용매 2

HCID 178418476HCID 178418476, 화합물촉매HCID 962Water용매

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온도
78 °C

실험 절차

To 10 mL of 1,4-dioxane were added (3E)-3-(4-bromo-5,5-dimethylfuran-2(5H)-ylidene)-5,6-difluoro-1,3-dihydro-2H-indol-2-one (150 mg, 0.44 mmol), 6-fluoropyridin-3-ylboronic acid (74 mg, 0.53 mmol), PdCl2(PPh3)2 (22 mg, 0.031 mmol), 2M Na2CO3 aqueous solution (0.6 mL, 1.2 mmol). The mixture was heated at 78° C. under N2 for 3 hours, cooled to room temperature and poured into 100 mL of water. The precipitates were filtered, washed with water and dried to give the crude product. Purification of the crude product through silica gel column with 1-3% MeOH/CHCl3 gave (3E)-5,6-difluoro-3-[4-(6-fluoropyridin-3-yl)-5,5-dimethylfuran-2(5H)-ylidene]-1,3-dihydro-2H-indol-2-one as a yellow solid (yield: 60 mg, 38%).

후처리

  1. temperaturecooled to room temperature
  2. filtrationThe precipitates were filtered
  3. washwashed with water
  4. customdried
  5. customto give the crude product
  6. customPurification of the crude product through silica gel column with 1-3% MeOH/CHCl3

출처 및 근거

ORD 기록
ord-54c14ade05364881825b5bd4fb94b2f1
출처 데이터셋
uspto-grants-2014_10
특허 번호
US08865682B2

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