Mesityl oxide → 2,8-Dimethylnona-2,7-dien-4-one

HRID 262075

Reaktionsgleichung

Reaktionsgleichung von HRID 262075
[CH3:1][C:2](=[O:8])[CH2:3][C:4]([CH3:7])(O)[CH3:5].O=[C:10]([CH:12]=[C:13]([CH3:15])[CH3:14])C.C(Cl)C=C(C)C>CC(C)=O>[CH2:10]([CH2:1][C:2]([CH:3]=[C:4]([CH3:7])[CH3:5])=[O:8])[CH:12]=[C:13]([CH3:15])[CH3:14]

Komponenten

5

Edukt 3

HCID 8858Mesityl oxideHCID 104291-Chloro-3-methyl-2-buteneHCID 31256Diacetone Alcohol

Produkt 1

HCID 132449842,8-Dimethylnona-2,7-dien-4-one

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 180AcetoneLösungsmittel

Versuchsvorschrift

Acetone under the reaction conditions forms also some diacetone alcohol and mesityl oxide, and these then react with the prenyl chloride to produce the above isomers of prenyl mesityl oxide, also called prenyl-substituted methyl pentenones, in the same manner as acetone reacts with prenyl chloride to produce methyl heptenone. It is also possible that prenyl chloride reacts with the diacetone alcohol in the same manner to give the corresponding hydroxy derivatives that subsequently dehydrate. The presence of such hydroxy ketones is observed in the residues of the methyl heptenone production by the process of U.S. Pat. No. 3,668,255.

Quellen und Nachweise

ORD-Eintrag
ord-5236353093b34b51b46c7a3bb94a86ea
Quelldatensatz
uspto-grants-1979_05
Patentnummer
US04153633

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