Menthol → 1-Methyl-4-isopropylcyclohexane

HRID 1657544

Reaktionsgleichung

Reaktionsgleichung von HRID 1657544
[CH3:1][C:2]1[CH2:11][CH2:10][C:6](=[C:7]([CH3:9])[CH3:8])[C:4](=O)[CH:3]=1.C[C@H]1C[C@@H](O)[C@H](C(C)C)CC1.C1(C)CCC(C(C)C)C(O)C1>O>[CH:2]1([CH3:1])[CH2:11][CH2:10][CH:6]([CH:7]([CH3:9])[CH3:8])[CH2:4][CH2:3]1

Komponenten

5

Edukt 3

HCID 1254MentholHCID 16666(-)-MentholHCID 381152Piperitenone

Produkt 1

HCID 74591-Methyl-4-isopropylcyclohexane

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

The hydrogenation of the crude piperitenone is expediently carried out at temperatures at which as much d,l-menthol as possible is present in the menthol isomer mixture and no splitting off of water to form p-menthane takes place. Temperatures of 100° to 260°C, especially of 160° to 220°C, have proved advantageous.

Quellen und Nachweise

ORD-Eintrag
ord-90b04b93593f476a8a404f76b53a0cad
Quelldatensatz
uspto-grants-1976_06
Patentnummer
US03960970

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