Picolinic acid → N-(3-methoxyphenyl)picolinamide

HRID 38239Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 38239
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:7]=[CH:8][CH:9]=1)[NH2:6].[N:10]1[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=1[C:16](O)=[O:17].CCN=C=NCCCN(C)C.Cl.CCN(CC)CC.OC1C2N=NNC=2C=CC=1>C(Cl)Cl>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([NH:6][C:16](=[O:17])[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][N:10]=2)[CH:7]=[CH:8][CH:9]=1

Komponenten

7

Edukt 5

HCID 1018Picolinic acidHCID 8471TriethylamineHCID 108243-MethoxyanilineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 178418300HCID 178418300, Verbindung

Produkt 1

HCID 22565221N-(3-methoxyphenyl)picolinamideAusbeute 90,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

According to Scheme 1 Method B: 3-Methoxyaniline (1.62 mmol, 0.18 mL) was added to a solution of picolinic acid (1.62 mmol, 0.20 g), EDCI.HCl (2.44 mmol, 0.47 g), Et3N (3.25 mmol, 0.45 mL), hydroxybenzotriazole (1.95 mmol, 0.30 g) in DCM (6 mL) at room temperature. The reaction mixture was stirred at 50° C. for 12 hours. The organic phase was washed with a saturated solution of NaHCO3 and with brine, was dried over MgSO4, was filtered and was concentrated under reduced pressure. The crude product was purified by flash chromatography over silica gel using cyclohexane/AcOEt (90:10) as eluent to afford N-(3-methoxyphenyl)picolinamide (1.46 mmol, 0.33 g, 90%) as an orange liquid.

Aufarbeitung

  1. washThe organic phase was washed with a saturated solution of NaHCO3 and with brine
  2. dry with materialwas dried over MgSO4
  3. filtrationwas filtered
  4. concentrationwas concentrated under reduced pressure
  5. customThe crude product was purified by flash chromatography over silica gel

Quellen und Nachweise

ORD-Eintrag
ord-2e32cc9db14340eebcd922f15264f743
Quelldatensatz
uspto-grants-2013_09
Patentnummer
US08524726B2

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