Hydroquinone → 4-Methoxyphenol

HRID 2417732Notes

Reaction equation

HRID 2417732 reaction equation
[C:1]1([CH:8]=[CH:7][C:5]([OH:6])=[CH:4][CH:3]=1)[OH:2].O=O.[CH3:11]O>[Fe]>[CH3:11][O:2][C:1]1[CH:8]=[CH:7][C:5]([OH:6])=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 785HydroquinoneHCID 887MethanolHCID 977Oxygen

Product 1

HCID 90154-Methoxyphenol

Reagents, catalysts & solvents 1

HCID 23925IronCatalyst

Procedure

After being filtered, washed with methanol and dried, the resin contains 1.0 milliequivalent of iron per gram of resin. 2.0 g of the catalyst prepared in this manner are fed into the autoclave together with 5.0 g of hydroquinone and 40 cm3 of methanol. The autoclave is pressurised to 5 kg/cm2 with O2 and kept at 105° for 4.5 hours. 4.1 g of hydroquinone monomethyl ether are obtained (conversion 80%, selectivity 91%).

Workup

  1. filtrationAfter being filtered
  2. washwashed with methanol
  3. customdried

Sources & evidence

ORD record
ord-886a606d1e11491da7da887313ad8273
Source dataset
uspto-grants-1984_09
Patent number
US04469897

Reaction notes

Loading…