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Cesium carbonate → 8-(1-(3,5-difluorophenyl)pyrrolidin-2-yl)-6-(morpholine-4-carbonyl)-2-morpholino-4H-chromen-4-one

HRID 41189
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HRID 41189 반응식
[N:1]1([C:7]([C:9]2[CH:10]=[C:11]3[C:16](=[C:17]([CH:19]4[CH2:23][CH2:22][CH2:21][NH:20]4)[CH:18]=2)[O:15][C:14]([N:24]2[CH2:29][CH2:28][O:27][CH2:26][CH2:25]2)=[CH:13][C:12]3=[O:30])=[O:8])[CH2:6][CH2:5][O:4][CH2:3][CH2:2]1.Br[C:32]1[CH:37]=[C:36]([F:38])[CH:35]=[C:34]([F:39])[CH:33]=1.C(=O)([O-])[O-].[Cs+].[Cs+].CC1(C)C2C=CC=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=2OC2C1=CC=CC=2P(C1C=CC=CC=1)C1C=CC=CC=1>O1CCOCC1.C(O[Pd]OC(=O)C)(=O)C>[F:38][C:36]1[CH:37]=[C:32]([N:20]2[CH2:21][CH2:22][CH2:23][C@@H:19]2[C:17]2[CH:18]=[C:9]([C:7]([N:1]3[CH2:6][CH2:5][O:4][CH2:3][CH2:2]3)=[O:8])[CH:10]=[C:11]3[C:16]=2[O:15][C:14]([N:24]2[CH2:25][CH2:26][O:27][CH2:28][CH2:29]2)=[CH:13][C:12]3=[O:30])[CH:33]=[C:34]([F:39])[CH:35]=1.[F:38][C:36]1[CH:37]=[C:32]([N:20]2[CH2:21][CH2:22][CH2:23][CH:19]2[C:17]2[CH:18]=[C:9]([C:7]([N:1]3[CH2:6][CH2:5][O:4][CH2:3][CH2:2]3)=[O:8])[CH:10]=[C:11]3[C:16]=2[O:15][C:14]([N:24]2[CH2:25][CH2:26][O:27][CH2:28][CH2:29]2)=[CH:13][C:12]3=[O:30])[CH:33]=[C:34]([F:39])[CH:35]=1
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참가 물질

8

반응물 4

HCID 10796Cesium carbonateHCID 1363131-Bromo-3,5-difluorobenzeneHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 866724156-(morpholine-4-carbonyl)-2-morpholino-8-(pyrrolidin-2-yl)-4H-chromen-4-one

생성물 2

HCID 665579648-[(2R)-1-(3,5-difluorophenyl)pyrrolidin-2-yl]-6-(morpholine-4-carbonyl)-2-morpholino-chromen-4-one
HCID 665592448-(1-(3,5-difluorophenyl)pyrrolidin-2-yl)-6-(morpholine-4-carbonyl)-2-morpholino-4H-chromen-4-one수율 149.9%

시약·촉매·용매 2

HCID 167845palladium(II) acetate촉매HCID 312751,4-Dioxane용매

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온도
100 °C

실험 절차

6-(morpholine-4-carbonyl)-2-morpholino-8-(pyrrolidin-2-yl)-4H-chromen-4-one (296 g, 716 mmol), 1-bromo-3,5-difluorobenzene (173 g, 895 mmol) and cesium carbonate (700 g, 2148 mmol) suspended in dioxane (3 L) was bubbled with nitrogen for 10 minutes. diacetoxypalladium (8.04 g, 36 mmol) and (9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) (41.4 g, 72 mmol) were added and the mixture bubbled with nitrogen for 2 minutes then heated at 100° C. for 2 hours. Upon cooling to room temperature the mixture was partitioned between DCM (500 mL) and water (250 mL). The organic phase was washed with brine and dried with magnesium sulfate, filtered and concentrated under reduced pressure to give a brown gum. The gum was purified by flash column chromatography on silica using gradient elution (0% methanol/DCM to 5% methanol/DCM). The desired product, 8-(1-(3,5-difluorophenyl)pyrrolidin-2-yl)-6-(morpholine-4-carbonyl)-2-morpholino-4H-chromen-4-one (282 g, 75%), was thus isolated as a pale yellow dry film. Mass Spectrum: m/z [M+H]+=526. More material was made by repeating this reaction.

후처리

  1. customwas bubbled with nitrogen for 10 minutes
  2. customthe mixture bubbled with nitrogen for 2 minutes
  3. temperatureUpon cooling to room temperature the mixture
  4. customwas partitioned between DCM (500 mL) and water (250 mL)
  5. washThe organic phase was washed with brine
  6. dry with materialdried with magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure
  9. customto give a brown gum
  10. customThe gum was purified by flash column chromatography on silica using gradient elution (0% methanol/DCM to 5% methanol/DCM)

출처 및 근거

ORD 기록
ord-6c347fd2053c4b53bdc6763a8606b949
출처 데이터셋
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08530470B2

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