Methylhydroquinone → 4-Methoxyphenol

HRID 964191Notes

Reaction equation

C[C:2]1[CH:8]=[C:7]([OH:9])[CH:6]=[CH:5][C:3]=1[OH:4].[C:10](=O)(OC1C=CC=CC=1)OC1C=CC=CC=1>>[CH3:10][O:9][C:7]1[CH:8]=[CH:2][C:3]([OH:4])=[CH:5][CH:6]=1

Participants

Reactant 2

HCID 7253Methylhydroquinone

HCID 7597Diphenyl carbonate

Product 1

HCID 90154-Methoxyphenol

Conditions

Temperature: 180 °C

Procedure

To a 1 L glass reaction vessel, methylhydroquinone (1.2 moles, 148.97 g) and diphenyl carbonate (1.29 moles, 277.63 g) were added. After heating the system to about 180° C., the system underwent Segments 1 through 5 and then skipped to Sement 11. After about 2 hours, the polymer crystallized at about 270° C. when about 90 wt % phenol had evolved. The solidified polymer could not be stranded.

Workup

additionwere added
customthe polymer crystallized at about 270° C. when about 90 wt % phenol

Sources & evidence

ORD record: ord-2f07347f988d426d80825cef9de54bc2
Source dataset: uspto-grants-1998_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05767225

Reaction notes

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