Ethanol → [4-(2-Phenyl-2-o-tolyl-vinyl)-pyridin-2-yl]-urea

HRID 1023438노트

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HRID 1023438 반응식
[C:1]1([C:7]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=2[CH3:22])=[CH:8][C:9]2[CH:14]=[CH:13][N:12]=[C:11]([NH2:15])[CH:10]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:23]([N:31]=C=O)(=[O:30])C1C=CC=CC=1.C(O)C.C(=O)([O-])[O-].[K+].[K+]>C(Cl)Cl>[C:1]1([C:7]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=2[CH3:22])=[CH:8][C:9]2[CH:14]=[CH:13][N:12]=[C:11]([NH:15][C:23]([NH2:31])=[O:30])[CH:10]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

참가 물질

6

반응물 4

HCID 702EthanolHCID 11430Potassium CarbonateHCID 78210Benzoyl isocyanateHCID 690856204-(2-Phenyl-2-o-tolyl-vinyl)-pyridin-2-ylamine

생성물 1

HCID 69083977[4-(2-Phenyl-2-o-tolyl-vinyl)-pyridin-2-yl]-urea수율 64.1%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

반응 조건

온도
50 °C

실험 절차

The crude 4-(2-phenyl-2-o-tolyl-vinyl)-pyridin-2-ylamine (251 mg) is dissolved in methylene chloride (5 mL). Then benzoyl isocynate (258 mg, 1.75 mmol) is added. The reaction mixture is sealed and heated at 50° C. for 16 hour. The solvent is then carefully removed and to the residue are added ethanol (5 mL) and potassium carbonate (182 mg, 1.32 mmol). The resulting mixture is heated at 80° C. for 45 min. Then solvent is removed and the residue is partitioned between water (45 mL) and EtOAc (55 mL). The aqueous layer is separated and extracted with EtOAc (2×30 mL). The organic layers are combined and concentrated to give the crude product. Purification by silica flash column chromatography using MeOH in DCM (gradient from 0% to 10%) affords 185 mg of the desired product.

후처리

  1. customThe reaction mixture is sealed
  2. customThe solvent is then carefully removed and to the residue
  3. temperatureThe resulting mixture is heated at 80° C. for 45 min
  4. customThen solvent is removed
  5. customthe residue is partitioned between water (45 mL) and EtOAc (55 mL)
  6. customThe aqueous layer is separated
  7. extractionextracted with EtOAc (2×30 mL)
  8. concentrationconcentrated
  9. customto give the crude product
  10. customPurification by silica flash column chromatography

출처 및 근거

ORD 기록
ord-ff7a81728e26460da7138b3dd27900a8
출처 데이터셋
uspto-grants-2014_05
특허 번호
US08722709B2

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