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

HRID 708958Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 708958
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

Komponenten

8

Edukt 4

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

Produkt 1

HCID 578244174-[4-[4-(Trifluoromethoxy)phenyl]-2-pyridinyl]benzaldehydeAusbeute 63,6 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 8857Ethyl AcetateLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

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), 2M 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 the product (120 mg) as 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 m/z 343 (M+).

Aufarbeitung

  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)

Quellen und Nachweise

ORD-Eintrag
ord-6e371f64717d42f6a1239dd41280ec3c
Quelldatensatz
uspto-grants-2015_11
Patentnummer
US09179681B2

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