Lithium Chloride → Cyclopentanone, 2-(2-methyl-2-propenyl)-
Reaktionsgleichung
COC([C:5]1([CH2:11][C:12]([CH3:14])=[CH2:13])[CH2:9][CH2:8][CH2:7][C:6]1=[O:10])=O.[Li+].[Cl-]>CN(P(N(C)C)(N(C)C)=O)C>[CH3:14][C:12](=[CH2:13])[CH2:11][CH:5]1[CH2:9][CH2:8][CH2:7][C:6]1=[O:10]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 73 °C
Versuchsvorschrift
A mixture of methyl-1-(2-methyl-2-propenyl)-2-oxo-1-cyclopentanecarboxylate (78.4 g), HMPA (hexamethylphosphoramide, 250 ml) and LiCl (34 g) is heated to 73° C. for 36 hrs. Extraction (3 times, ether/water) of the reaction product provides a brown oil which, upon fractional distillation (63° C.-75° C./5.32×102Pa), yields 2-(2-methyl-2-propenyl)-1-cyclopentanone.
Aufarbeitung
- extractionExtraction (3 times, ether/water) of the reaction product
- customprovides a brown oil which
- distillationupon fractional distillation (63° C.-75° C./5.32×102Pa)
Quellen und Nachweise
- ORD-Eintrag
- ord-9c32e307e20b402b87209b0f4dc12dd7
- Quelldatensatz
- uspto-grants-1994_03
- Patentnummer
- US05292719
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