Hydrochloric Acid → (2E)-3-(2-hydroxyphenyl)-1-pyridin-3-ylprop-2-en-1-one
Reaktionsgleichung
[CH:1](=O)[C:2]1[C:3](=[CH:5][CH:6]=[CH:7][CH:8]=1)[OH:4].[N:10]1[CH:15]=[CH:14][CH:13]=[C:12]([C:16](=[O:18])[CH3:17])[CH:11]=1.Cl>[OH-].[Na+].O.CCO>[OH:4][C:3]1[CH:5]=[CH:6][CH:7]=[CH:8][C:2]=1/[CH:1]=[CH:17]/[C:16]([C:12]1[CH:11]=[N:10][CH:15]=[CH:14][CH:13]=1)=[O:18]Komponenten
7
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 3
Reaktionsbedingungen
- Temperatur
- 0 °C
Versuchsvorschrift
To a vigorously stirred solution of salicylaldehyde (45 mL, 0.42 mol) in 2.5 M NaOH (330 mL) at 0° C. was added 1-(pyridin-3-yl)ethanone (46.2 mL, 0.422 mol) dropwise over 50 min. After stirring at 0° C. for 2 h, the reaction mixture was diluted with water (150 mL) and EtOH (150 mL). The mixture was acidified with conc. HCl to pH=3. The resulting yellow solid was filtered and dried to give (2E)-3-(2-hydroxyphenyl)-1-pyridin-3-ylprop-2-en-1-one (69.8 g, 73%) which was used without further purification. LCMS: (FA) ES+ 226.2, ES-224.2.
Aufarbeitung
- filtrationThe resulting yellow solid was filtered
- customdried
Quellen und Nachweise
- ORD-Eintrag
- ord-b8e5ec1d182847879f620880d3802ff6
- Quelldatensatz
- uspto-grants-2010_09
- Patentnummer
- US07795249B2
Notizen zur Reaktion
Wird geladen…