Sodium Bicarbonate → Rac-5-(4-fluorophenyl)-6-{hydroxy[4-(trifluoromethyl)phenyl]methyl}-7-isopropyl-2,2-dimethyl-2,3-dihydro-4h-chromen-4-one

HRID 1516694노트

반응식

HRID 1516694 반응식
Br[Mg][C:3]1[CH:8]=[CH:7][C:6]([C:9]([F:12])([F:11])[F:10])=[CH:5][CH:4]=1.[F:13][C:14]1[CH:19]=[CH:18][C:17]([C:20]2[C:29]([CH:30]=[O:31])=[C:28]([CH:32]([CH3:34])[CH3:33])[CH:27]=[C:26]3[C:21]=2[C:22](=[O:37])[CH2:23][C:24]([CH3:36])([CH3:35])[O:25]3)=[CH:16][CH:15]=1.C(=O)(O)[O-].[Na+]>O1CCCC1>[F:13][C:14]1[CH:19]=[CH:18][C:17]([C:20]2[C:29]([CH:30]([OH:31])[C:3]3[CH:8]=[CH:7][C:6]([C:9]([F:12])([F:11])[F:10])=[CH:5][CH:4]=3)=[C:28]([CH:32]([CH3:33])[CH3:34])[CH:27]=[C:26]3[C:21]=2[C:22](=[O:37])[CH2:23][C:24]([CH3:35])([CH3:36])[O:25]3)=[CH:16][CH:15]=1

참가 물질

5

반응물 3

HCID 516892Sodium BicarbonateHCID 580030235-(4-Fluorophenyl)-7-isopropyl-2,2-dimethyl-4-oxochroman-6-carbaldehydeHCID 178506198HCID 178506198, 화합물

생성물 1

HCID 69070570Rac-5-(4-fluorophenyl)-6-{hydroxy[4-(trifluoromethyl)phenyl]methyl}-7-isopropyl-2,2-dimethyl-2,3-dihydro-4h-chromen-4-one

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

At −78° C., 2.29 ml (1.15 mmol) of a freshly prepared 0.5 M solution of bromo[4-(trifluoromethyl)phenyl]magnesium in tetrahydrofuran are slowly added dropwise to a solution of 300 mg (881 μmol) of 5-(4-fluorophenyl)-7-isopropyl-2,2-dimethyl-4-oxochroman-6-carbaldehyde (Example 20A) in 7 ml of tetrahydrofuran. The mixture is then allowed to thaw slowly to −20° C. and stirred at this temperature for 45 min. A 10% strength sodium bicarbonate solution is then added, the mixture is extracted three times with ethyl acetate and the combined organic phases are washed with saturated sodium chloride solution. The organic phases are dried over magnesium sulfate, the solvent is then removed under reduced pressure and the residue is purified by column chromatography on silica gel (mobile phase: gradient cyclohexane→cyclohexane/ethyl acetate 10:1).

후처리

  1. customthaw slowly to −20° C.
  2. extractionthe mixture is extracted three times with ethyl acetate
  3. washthe combined organic phases are washed with saturated sodium chloride solution
  4. dry with materialThe organic phases are dried over magnesium sulfate
  5. customthe solvent is then removed under reduced pressure
  6. customthe residue is purified by column chromatography on silica gel (mobile phase: gradient cyclohexane→cyclohexane/ethyl acetate 10:1)

출처 및 근거

ORD 기록
ord-0dd76875bff9412baae4c7b078d20bce
출처 데이터셋
uspto-grants-2012_07
특허 번호
US08227511B2

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