Methacrylic Acid → 2-Methylprop-2-enoic acid;styrene

HRID 2108143

Reaction equation

[C:1]([OH:6])(=[O:5])[C:2]([CH3:4])=[CH2:3].[CH2:7]([C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)[CH3:8].COC1C=CC(O)=CC=1>>[CH2:8]=[CH:7][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1.[C:1]([OH:6])(=[O:5])[C:2]([CH3:4])=[CH2:3]

Participants

Reactant 3

HCID 4093Methacrylic Acid

HCID 7500Ethylbenzene

HCID 90154-Methoxyphenol

Product 1

HCID 1657302-Methylprop-2-enoic acid;styrene

Procedure

Example 1 was repeated except that a mixture of methacrylic acid, ethylbenzene and 100 ppm, based on methacrylic acid, of p-methoxyphenol was used instead of the methacrylic acid/ethylbenzene mixture fed to the second and third polymerization vessels. Styrene/methacrylic acid copolymer was obtained at a rate of 3.2 kg per hour.

Workup

customthird polymerization vessels

Sources & evidence

ORD record: ord-24e8ae62926c45e4a416b0bae575b5ef
Source dataset: uspto-grants-1990_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04937298

Linked notes

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