4-Ethylphenol → 4-Vinylphenol

HRID 462810Notes

Reaction equation

HRID 462810 reaction equation
[CH2:1]([C:3]1[CH:8]=[CH:7][C:6]([OH:9])=[CH:5][CH:4]=1)[CH3:2]>[Fe].O>[CH:1]([C:3]1[CH:8]=[CH:7][C:6]([OH:9])=[CH:5][CH:4]=1)=[CH2:2]

Participants

4

Reactant 1

HCID 312424-Ethylphenol

Product 1

HCID 624534-Vinylphenol

Reagents, catalysts & solvents 2

HCID 23925IronCatalystHCID 962WaterSolvent

Procedure

To 500 g of crude p-vinyl phenol, obtained by the dehydrogenation of p-ethyl phenol (composition: p-vinyl phenol 25.5%, p-ethyl phenol 69.2%, p-cresol 2.1%, phenol 0.9%, p-vinyl phenol polymer 0.5% and other unknown substances 1.8%), 50% by weight water, 10 ppm of an iron powder based on the amount of the p-vinyl phenol were added, respectively. The mixture was put in a 1 liter glass flask equipped with a stirrer and sulfuric acid was added as a polymerization accelerator in an amount of 500 ppm based on the amount of the p-vinyl phenol with stirring on a water bath. The mixture was reacted at 60° C. for 3 hours.

Sources & evidence

ORD record
ord-9b73b924cc5240fa85165d04a3e3c9cc
Source dataset
uspto-grants-1985_05
Patent number
US04517349

Reaction notes

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