Reaktionsgleichung
[OH-].[Na+].[CH3:3][C:4]1[CH:14]=[CH:13][C:7]([CH:8]=[CH:9][C:10]([OH:12])=[O:11])=[CH:6][CH:5]=1.[Cl-].[Zn+2:16].[Cl-]>O>[CH3:3][C:4]1[CH:14]=[CH:13][C:7]([CH:8]=[CH:9][C:10]([O-:12])=[O:11])=[CH:6][CH:5]=1.[Zn+2:16].[CH3:3][C:4]1[CH:14]=[CH:13][C:7]([CH:8]=[CH:9][C:10]([O-:12])=[O:11])=[CH:6][CH:5]=1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 70 °C
Versuchsvorschrift
A solution of 47% (w/w) sodium hydroxide (5.5 g) is added to slurry of 4-methylcinnamic acid (8.1 g, 0.05 mol) in water (100 mL) at 70° C. to give a clear slightly alkaline solution. A solution of zinc chloride (3.4 g, 0.025 mol) in water (50 mL) is added and a precipitate is formed immediately. The mixture is stirred at 70° C. for further 2.5 hours. The precipitate is then filtered and dried to yield 7.7 g (80%) zinc 4-methylcinnamate as a fine white powder. IR absorption bands: 1530, 1509, 1425 and 1382 cm−1.
Aufarbeitung
- customto give a clear slightly alkaline solution
- customa precipitate is formed immediately
- filtrationThe precipitate is then filtered
- customdried
Quellen und Nachweise
- ORD-Eintrag
- ord-d45b088f626142e9a083da2da8d91c60
- Quelldatensatz
- uspto-grants-2012_01
- Patentnummer
- US08101544B2
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