Reaktionsgleichung
[NH:1]1[CH:5]=[C:4]([CH:6]=[O:7])[CH:3]=[N:2]1.Br[CH2:9][CH:10]([OH:12])[CH3:11].C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[OH:12][CH:10]([CH3:11])[CH2:9][N:1]1[CH:5]=[C:4]([CH:6]=[O:7])[CH:3]=[N:2]1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 150 °C
Versuchsvorschrift
Combine 1H-pyrazole-4-carbaldehyde (0.150 g, 1.56 mmol), racemic 1-bromo-2-propanol (0.260 g, 1.87 mmol), and potassium carbonate (0.323 g, 2.34 mmol) in acetonitrile (2 mL). Heat in microwave at 150° C. for 20 min. Filter, wash with acetonitrile and concentrate filtrate. Purify via silica gel chromatography, eluting with 0:100 to 100:0 ethyl acetate:hexanes) to give the title preparation (177 mg, 73%). GC-MS: m/z=154 [M+].
Aufarbeitung
- filtrationFilter
- washwash with acetonitrile
- concentrationconcentrate filtrate
- customPurify via silica gel chromatography
- washeluting with 0:100 to 100:0 ethyl acetate
- customhexanes) to give the title
- custompreparation (177 mg, 73%)
Quellen und Nachweise
- ORD-Eintrag
- ord-ed4bf177d43f4255acb295070f6f56a9
- Quelldatensatz
- uspto-grants-2012_06
- Patentnummer
- US08202873B2
Verknüpfte Notizen
Wird geladen…