Hydroquinone → 4-Methoxyphenol

HRID 1701394Notes

Reaction equation

HRID 1701394 reaction equation
[C:1]1([CH:8]=[CH:7][C:5]([OH:6])=[CH:4][CH:3]=1)[OH:2].[C:9](=O)(OC)OC.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>>[CH3:9][O:2][C:1]1[CH:8]=[CH:7][C:5]([OH:6])=[CH:4][CH:3]=1

Participants

4

Reactant 3

HCID 785HydroquinoneHCID 11776TriphenylphosphineHCID 12021Dimethyl Carbonate

Product 1

HCID 90154-MethoxyphenolYield 97%

Procedure

22 parts of hydroquinone, 18 parts of dimethyl carbonate and one part of triphenylphosphine are kept for 15 hours at 190° C. Working up takes place as described in Example 23. 3 parts (97% of theory, based on converted hydroquinone) of hydroquinone monomethyl ether of boiling point 57° C. are obtained. The conversion is 12 percent.

Sources & evidence

ORD record
ord-7432a2721d1943e5892db2e1c698b105
Source dataset
uspto-grants-1980_03
Patent number
US04192949

Reaction notes

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