Phenol → Diphenyl carbonate

HRID 2259448Notes

Reaction equation

HRID 2259448 reaction equation
[C:1](Cl)(Cl)=[O:2].[C:5]1([OH:11])[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1>>[C:1](=[O:2])([O:11][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)[O:11][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1

Participants

3

Reactant 2

HCID 996Phenol2×HCID 6371Phosgene

Product 1

HCID 7597Diphenyl carbonate

Procedure

In a planar-section pot with flow-spoilers, a blower/stirrer and reflux condenser, 0.75 mol/h of phosgene was continuously bubbled into 141 g (1.50 mol) of phenol in the presence of 14.1 g (10 wt. % with reference to phenol) of a powdered aluminium oxide 507-C-I (neutral) from CAMAG. After about 2 h reaction time, the phenol conversion was 41%, wherein 66 g of diphenyl carbonate were formed. The selectivity to give carbonate was >99%.

Workup

  1. temperatureIn a planar-section pot with flow-spoilers, a blower/stirrer and reflux condenser
  2. customAfter about 2 h reaction time

Sources & evidence

ORD record
ord-e5f4c6708c4b48629a4efeee4829713b
Source dataset
uspto-grants-1995_12
Patent number
US05473094

Reaction notes

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