Hydrochloric Acid → Methyl 4-(4-cyanophenyl)-6-methyl-2-thioxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate

HRID 2362292

반응식

HRID 2362292 반응식
[F:1][C:2]([F:14])([F:13])[C:3]1[CH:4]=[C:5]([NH:9][C:10]([NH2:12])=[S:11])[CH:6]=[CH:7][CH:8]=1.[C:15]([O:21][CH3:22])(=[O:20])[CH2:16][C:17]([CH3:19])=O.C[Si](OP([O-])([O-])=O)(C)C.Cl.[CH2:33]1[CH2:37]O[CH2:35][CH2:34]1>>[CH3:22][O:21][C:15]([C:16]1[CH:35]([C:34]2[CH:2]=[CH:3][C:4]([C:5]#[N:9])=[CH:37][CH:33]=2)[NH:12][C:10](=[S:11])[N:9]([C:5]2[CH:6]=[CH:7][CH:8]=[C:3]([C:2]([F:1])([F:13])[F:14])[CH:4]=2)[C:17]=1[CH3:19])=[O:20]

참가 물질

6

반응물 5

HCID 313Hydrochloric AcidHCID 7757Methyl acetoacetateHCID 8028TetrahydrofuranHCID 7358443-(Trifluoromethyl)phenylthioureaHCID 18172808Trimethylsilylphosphate

생성물 1

HCID 57762471Methyl 4-(4-cyanophenyl)-6-methyl-2-thioxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate

반응 조건

온도
70 °C

실험 절차

To a solution of 3-trifluoromethylphenylthiourea (2.2 g, 10 mmol) 4-cyanobenzaldehyde (1.4 g, 11 mmol) and methyl acetoacetate (1.2 mL, 11 mmol) in THF (40 mL) was added trimethylsilylphosphate (1.8 g) and the mixture heated at 70° C. After 17 hours, the reaction mixture was allowed to cool, then poured onto 0.5 M HCl (200 mL) and extracted into EtOAc. The organic phase was washed with water, then brine, dried (Na2SO4) and concentrated in vacuo. The resulting residue was purified by silica gel chromatography eluting with a gradient of 20-30% EtOAc in cyclohexane Appropriate fractions were combined and concentrated in vacuo to yield the title compound as a white foam (3.7 g).

후처리

  1. temperatureto cool
  2. extractionextracted into EtOAc
  3. washThe organic phase was washed with water
  4. dry with materialbrine, dried (Na2SO4)
  5. concentrationconcentrated in vacuo
  6. customThe resulting residue was purified by silica gel chromatography
  7. washeluting with a gradient of 20-30% EtOAc in cyclohexane Appropriate fractions
  8. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-eb8164a16116482ab05d2e84facc4359
출처 데이터셋
uspto-grants-2014_04
특허 번호
US08691826B2

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