Oxygen → Diphenyl carbonate

HRID 2085546Notes

Reaction equation

HRID 2085546 reaction equation
[O-:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Na+].[Na+].[O-:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.[C:17]1([OH:23])C=CC=CC=1.[C]=O.O=O>[Br-].C([N+](CCCC)(CCCC)CCCC)CCC.[Pd].[O-2].[Mn+2]>[C:17](=[O:23])([O:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)[O:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

7

Reactant 4

HCID 977OxygenHCID 996PhenolHCID 15819849DinatriumphenolatHCID 178418416HCID 178418416, compound

Product 1

HCID 7597Diphenyl carbonate

Reagents, catalysts & solvents 2

HCID 74236Tetrabutylammonium BromideCatalystHCID 131723814Pd Manganese oxideCatalyst

Procedure

Using the same 100-ml reactor as in Examples 1 to 14, the reaction was carried out in the presence of 1000 mg of the above-mentioned supported catalyst (2.5% Pd/Manganese oxide) under the same conditions as in the examples, that is, in each case of the addition (Comparative Example 6) or no addition (Comparative Example 7) of disodium phenoxide, 50.0 g of phenol and 1000 mg of tetra-n-butylammonium bromide were charged, and the reaction was carried out at a reaction temperature of 80° C., under a reaction pressure of 10 bar, at a flow rate of carbon monoxide of 500 ml/min, at a flow rate of oxygen of 25 ml/min and for a reaction time of 2 hours. The obtained results are shown in the following Table 2 together with other comparative examples.

Workup

  1. additionthat is, in each case of the addition (Comparative Example 6)
  2. additionwere charged
  3. customThe obtained results

Sources & evidence

ORD record
ord-730b42f1a2884483a594149711140e8c
Source dataset
uspto-grants-2004_04
Patent number
US06720443B2

Reaction notes

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