Citronellol → Menthone

HRID 2163480Notes

Reaction equation

HRID 2163480 reaction equation
[CH3:1][C:2](=[CH:4][CH2:5][CH2:6][CH:7]([CH2:9][CH2:10][OH:11])[CH3:8])[CH3:3].[H][H]>>[CH3:8][C@H:7]1[CH2:9][C:10](=[O:11])[C@H:4]([CH:2]([CH3:3])[CH3:1])[CH2:5][CH2:6]1

Participants

3

Reactant 2

HCID 8842CitronellolHCID 178418361HCID 178418361, compound

Product 1

HCID 26447Menthone

Procedure

In another embodiment of the present invention, the present invention provides a process for producing menthol in good yields which comprises dehydrogenating citronellol in a reaction system containing a catalyst at a temperature of about 150° to about 260° C in an atmosphere of hydrogen under a pressure of 0 to about 5 kg/cm2.G to produce menthone, and then, in the same reaction system without separating the catalyst or adding additional catalyst, hydrogenating the menthone produced by decreasing the temperature to about 110° to about 130° C and increasing the hydrogen pressure to about 10 to about 50 kg/cm2.G to produce menthol.

Workup

  1. customin good yields which

Sources & evidence

ORD record
ord-5f77cf11f62a42f9b807210550efdc1c
Source dataset
uspto-grants-1979_01
Patent number
US04134919

Reaction notes

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