Reaktionsgleichung
[Br:1][C:2]1[CH:3]=[C:4]([CH:7]=[O:8])[S:5][CH:6]=1.[CH2:9]([Mg]Br)[CH3:10].[Cl-].[NH4+]>C(OCC)C.C1COCC1>[Br:1][C:2]1[CH:3]=[C:4]([CH:7]([OH:8])[CH2:9][CH3:10])[S:5][CH:6]=1Komponenten
6
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
10 g (52 mmol) of 4-bromothiophene-2-carbaldehyde are dissolved in 200 mL of ethyl ether and 20 mL of THF. 26.6 mL (78 mmol) of 3.0M ethylmagnesium bromide are added slowly. After 2 hours at room temperature, the reaction medium is poured into saturated ammonium chloride solution. After extraction, a yellow oil is obtained (m=11.5 g, Y=99%).
Aufarbeitung
- extractionAfter extraction
- customa yellow oil is obtained (m=11.5 g, Y=99%)
Quellen und Nachweise
- ORD-Eintrag
- ord-cc902a219f7946458d907dddb3b794c3
- Quelldatensatz
- uspto-grants-2004_12
- Patentnummer
- US06831106B1
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