1,6-Hexanediol → Cyclohexanol cyclohexanone

HRID 613819Notes

Reaction equation

HRID 613819 reaction equation
[CH2:1](O)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][OH:7]>C1CCCCC1>[C:6]1(=[O:7])[CH2:5][CH2:4][CH2:3][CH2:2][CH2:1]1.[CH:6]1([OH:7])[CH2:5][CH2:4][CH2:3][CH2:2][CH2:1]1

Participants

3

Reactant 1

HCID 123741,6-Hexanediol

Product 1

HCID 22492587Cyclohexanol cyclohexanone

Reagents, catalysts & solvents 1

HCID 8078CyclohexaneSolvent

Procedure

The present invention relates to a process for preparing 1,6-hexanediol having a purity of at least 99% which is, in particular, essentially free of 1,4-cyclohexanediols, from a carboxylic acid mixture which is obtained in the oxidation of cyclohexane to cyclohexanone/cyclohexanol using oxygen or oxygen-containing gases by water extraction of the reaction mixture, by esterification of the acids, fractionation of the esterification mixture into an ester fraction free of 1,4-cyclohexanediols and a fraction comprising the 1,4-cyclohexanediols, hydrogenation of the ester fraction and purification of the 1,6-hexanediol by distillation.

Sources & evidence

ORD record
ord-3c836f0304c54143900e90732b6a7da1
Source dataset
uspto-grants-1999_12
Patent number
US06008418

Reaction notes

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