Phenol → Diphenyl carbonate

HRID 725258

Reaction equation

[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:8](=O)([O:16]C)[O:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1>>[C:8](=[O:16])([O:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)[O:7][C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

Reactant 2

HCID 996Phenol

HCID 139482Carbonic acid, methyl phenyl ester

Product 1

HCID 7597Diphenyl carbonate

Procedure

A stream 11 essentially containing all the non-reacted phenol, phenyl methyl carbonate and any possible diphenyl carbonate produced, the transesterification catalyst and a fraction of the dimethylcarbonate fed, is extracted from the bottom of the reaction section of column C1 so that the molar ratio, in this stream, between the dimethyl carbonate and the phenol is between 0.5 and 5, normally between 1.0 and 5.0. This fraction usually forms between about 10 and about 60% of the total dimethyl carbonate fed to column C1.

Sources & evidence

ORD record: ord-96e8a11a429549a189d0f037b46aa719
Source dataset: uspto-grants-1998_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05705673

Linked notes

Loading…