Potassium Carbonate → 4-[4-[4-(Trifluoromethoxy)phenyl]-2-pyridinyl]benzaldehyde

HRID 1925421노트

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HRID 1925421 반응식
Cl[C:2]1[CH:7]=[C:6]([C:8]2[CH:13]=[CH:12][C:11]([O:14][C:15]([F:18])([F:17])[F:16])=[CH:10][CH:9]=2)[CH:5]=[CH:4][N:3]=1.ClC1C=C(I)C=CN=1.[CH:27]([C:29]1[CH:34]=[CH:33][C:32](B(O)O)=[CH:31][CH:30]=1)=[O:28].C(=O)([O-])[O-].[K+].[K+]>CCOC(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O1CCOCC1>[F:16][C:15]([F:18])([F:17])[O:14][C:11]1[CH:12]=[CH:13][C:8]([C:6]2[CH:5]=[CH:4][N:3]=[C:2]([C:32]3[CH:33]=[CH:34][C:29]([CH:27]=[O:28])=[CH:30][CH:31]=3)[CH:7]=2)=[CH:9][CH:10]=1

참가 물질

8

반응물 4

HCID 11430Potassium CarbonateHCID 5910734-Formylphenylboronic AcidHCID 15165112-Chloro-4-iodopyridineHCID 115871572-Chloro-4-[4-(trifluoromethoxy)phenyl]pyridine

생성물 1

HCID 578244174-[4-[4-(Trifluoromethoxy)phenyl]-2-pyridinyl]benzaldehyde수율 63.6%

시약·촉매·용매 3

HCID 178418397HCID 178418397, 화합물촉매HCID 8857Ethyl Acetate용매HCID 312751,4-Dioxane용매

실험 절차

2-Chloro-4-(4-trifluoromethoxyphenyl)-pyridine (0.55 mmol) starting from 2-chloro-4-iodopyridine, 4-formylphenyl boronic acid (0.82 mmol), tetrakis(triphenylphosphine)palladium(0) (0.005 mmol), 2 M potassium carbonate (0.55 mL) and dioxane (3 mL) were combined in a vial and irradiated by microwave for 15 min at 150° C. The reaction mixture was taken up in EtOAc and washed with brine. The organic layer was dried over magnesium sulfate, was filtered and the solvent removed in vacuo. Purification by silica gel chromatography (EtOAc/hexanes) yielded 120 mg of an off-white solid. 1H NMR (400 MHz, CDCl3) δ 10.11 (s, 1H), 8.81 (d, J=4.8 Hz, 1H), 8.24 (d, J=8.7 Hz, 2H), 8.03 (d, J=8.4 Hz, 2H), 7.96 (m, 1H), 7.73 (d, J=9.0 Hz, 2H), 7.49 (dd, J=5.3, 1.8 Hz, 1H), 7.37 (d, J=8.1 Hz, 2H); EIMS 343 m/z (M+).

후처리

  1. customirradiated by microwave for 15 min at 150° C
  2. washwashed with brine
  3. dry with materialThe organic layer was dried over magnesium sulfate
  4. filtrationwas filtered
  5. customthe solvent removed in vacuo
  6. customPurification by silica gel chromatography (EtOAc/hexanes)

출처 및 근거

ORD 기록
ord-c9d5dcd3194141a289d0797da3f0b238
출처 데이터셋
uspto-grants-2012_05
특허 번호
US08178658B2

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