5,6-Dimethyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione → HCID 54268221, Verbindung
Reaktionsgleichung
[CH3:1][C:2]1[CH2:3][CH:4]2[C:12](=[O:13])[O:11][C:9](=[O:10])[CH:5]2[CH2:6][C:7]=1[CH3:8]>[Pt](=O)=O.O1CCCC1>[CH3:1][CH:2]1[CH:7]([CH3:8])[CH2:6][C:5]2[C:9]([O:11][C:12](=[O:13])[C:4]=2[CH2:3]1)=[O:10]Komponenten
4
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
A mixture of 4,5-dimethyl-4-cyclohexene-1,2-dicarboxylic anhydride (10 g; 0.0555 mol), platinum dioxide (150 mg) and tetrahydrofuran (100 ml) was hydrogenated at room temperature for 8 hours. Precipitates were removed by filtration, and the filtrate was evaporated under reduced pressure to give 4,5-dimethylcyclohexene-1,2-dicarboxylic anhydride. IR νmaxFilm (cm-1): 1860, 1760.
Aufarbeitung
- customPrecipitates
- customwere removed by filtration
- customthe filtrate was evaporated under reduced pressure
Quellen und Nachweise
- ORD-Eintrag
- ord-3d71c9372df04af1a1a56555ab099c4b
- Quelldatensatz
- uspto-grants-1986_07
- Patentnummer
- US04598078
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