Water → Methyl Acetate

HRID 1413567Notes

Reaction equation

HRID 1413567 reaction equation
[C:1]([OH:12])(=[O:11])[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1.[C:13]1(C)C=CC(C)=CC=1.BrBr.O>C(O)(=O)C.[Co]>[CH3:13][O:8][C:6](=[O:7])[CH3:5].[C:1]([OH:12])(=[O:11])[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1

Participants

8

Reactant 4

HCID 962WaterHCID 7489Terephthalic AcidHCID 7809P-XyleneHCID 24408Bromine

Product 2

HCID 6584Methyl AcetateHCID 7489Terephthalic Acid

Reagents, catalysts & solvents 2

HCID 104730CobaltCatalystHCID 176Acetic AcidSolvent

Procedure

In a process for the synthesis of terephthalic acid, comprising the oxidation of para-xylene in acetic acid solution, at a temperature of from 100° to 230° C. and at a pressure from 1 to 30 kg/cm2, and in the presence of a catalytic system based on manganese, bromine and cobalt, whereby water is formed and methyl-acetate is by-produced during the oxidation, whereby solid terephthalic acid is separated from the mother liquor and whereby one withdraws from the oxidation zone a liquid which is obtained by condensing the vapors released during the oxidation and which are mainly consisting of acetic acid and water, the improvement for the recovery of the acetic acid solvent, the catalyst and the methyl acetate, comprising:

Workup

  1. customof from 100° to 230° C.

Sources & evidence

ORD record
ord-2a2d77e2d5cf4ca8b33728f5a92cc925
Source dataset
uspto-grants-1981_02
Patent number
US04250330

Reaction notes

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