Acetonitrile → HCID 53640530, Verbindung

HRID 1824868Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1824868
[OH-].[K+].[C:3]1(/[C:9](/[C:19]2[CH:24]=[CH:23][C:22]([CH:25]=O)=[CH:21][CH:20]=2)=[C:10](/[C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)\[CH2:11][CH3:12])[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH3:27][C:28]#[N:29]>O>[C:3]1([C:9]([C:19]2[CH:24]=[CH:23][C:22]([CH:25]=[CH:27][C:28]#[N:29])=[CH:21][CH:20]=2)=[C:10]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[CH2:11][CH3:12])[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1

Komponenten

5

Edukt 3

HCID 6342AcetonitrileHCID 14797Potassium HydroxideHCID 11723053HCID 11723053, Verbindung

Produkt 1

HCID 53640530HCID 53640530, VerbindungAusbeute 57 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A suspension of potassium hydroxide (85%, 260 mg, 3.9 mmol) in CH3CN (25 mL) was heated to reflux and (Z)-1,2-Diphenyl-1-(4-formylphenyl)-1-butene (4a) (Willson J. Med. Chem. 1994, 37, 1550–1552) (1.0 g, 3.18 mmol) was added in portions. After refluxing 5 min, the mixture was diluted with water and extracted with EtOAc. The combined organic layers were washed with brine and dried (MgSO4). The solvent was removed under reduced pressure and the residue chromatographed (silica gel, 15% EtOAc/hexanes) to give nitrile (4b) as a white solid (616 mg, 57%): 1H NMR (CDCl3) δ 7.39–7.07 (m, 13H), 6.91 (d, J=8.4 Hz, 2H), 5.69 (d, J=16.9 Hz, 1H), 2.48 (q, J=7.3 Hz, 2H), 0.94 (t, J=7.3 Hz, 3H); HRMS calcd. for C25H21N (M+H+) 335.1674; found 335.1679.

Aufarbeitung

  1. temperaturewas heated
  2. temperatureto reflux
  3. temperatureAfter refluxing 5 min
  4. extractionextracted with EtOAc
  5. washThe combined organic layers were washed with brine
  6. dry with materialdried (MgSO4)
  7. customThe solvent was removed under reduced pressure
  8. customthe residue chromatographed (silica gel, 15% EtOAc/hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-fcf2e46f729d4c7baeda18b207c0e0dc
Quelldatensatz
uspto-grants-2006_05
Patentnummer
US07045540B2

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