Toluene → 2-Cyclopenten-1-one, 3-methyl-2-(3-methyl-2-butenyl)-

HRID 724503

Reaktionsgleichung

[CH3:1][C:2]1[CH2:6][CH2:5][C:4](=[O:7])[CH:3]=1.[CH2:8](Cl)[CH:9]=[C:10]([CH3:12])[CH3:11].C1(C)C=CC=CC=1.[OH-].[Na+]>C(O)(=O)C.O>[CH3:1][C:2]1[CH2:6][CH2:5][C:4](=[O:7])[C:3]=1[CH2:8][CH:9]=[C:10]([CH3:12])[CH3:11]

Komponenten

Reaktionsbedingungen

Temperatur: 100 °C

Versuchsvorschrift

A mixture of 3-methyl-2-cyclopentenone 24.5 g (0.25 mole) and prenyl chloride 54 g (0.51 mole) was fed into a reaction flask containing 30 ml of toluene, sodium hydroxide 21.3 g, water 21.3 g and Aliquat 3361 g maintaining 100° C. The reaction mass was aged for 4 hours, cooled to 25° C. and neutralized with acetic acid. The organic layer was removed and distilled to give 20.5 g of 3-methyl-2-(3-methyl-2-butenyl)-2-cyclopenten-1-one. The 3-methyl-2-(3-methyl-2-butenyl)-2-cyclopenten-1-one had a Bp of 115° C. at 5 mmHg.

Aufarbeitung

customwas fed into a reaction flask
customThe organic layer was removed
distillationdistilled

Quellen und Nachweise

ORD-Eintrag: ord-d977d7122b3c408e9f4a159f50ca227d
Quelldatensatz: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07141699B1

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