Hydrogen Peroxide → Bisphenol A

HRID 1757693Notes

Reaction equation

HRID 1757693 reaction equation
CO.[OH:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]([C:13]2[CH:18]=[CH:17][C:16]([OH:19])=[CH:15][CH:14]=2)([CH3:12])[CH3:11])=[CH:6][CH:5]=1.OO.CBr>CO>[OH:3][C:4]1[CH:5]=[CH:6][C:7]([C:10]([C:13]2[CH:14]=[CH:15][C:16]([OH:19])=[CH:17][CH:18]=2)([CH3:12])[CH3:11])=[CH:8][CH:9]=1

Participants

5

Reactant 3

HCID 784Hydrogen PeroxideHCID 6323Methyl BromideHCID 131719113bisphenol-A methanol

Product 1

HCID 6623Bisphenol A

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

Briefly describing one aspect of the present invention, there is provided reduced methyl bromide methods for making high yield, high quality tetrabromobisphenol-A using methanol solvents including dissolving bisphenol-A in a methanol solvent to form a bisphenol-A methanol solution, adding bromine to the bisphenol-A methanol solution to brominate bisphenol-A and form tetrabromobisphenol-A and hydrogen bromide, exposing the bisphenol-A methanol solution to an amount of a hydrogen peroxide agent to reduce the amount of methyl bromide co-product resulting from the bromination of bisphenol-A in methanol by reducing the amount of hydrogen bromide co-product available to reach with the methanol, and collecting the resulting tetrabromobisphenol-A product thus formed after the bromination is substantially complete.

Sources & evidence

ORD record
ord-343b0815c0cb4bb9bd63504304e50ea7
Source dataset
uspto-grants-1995_08
Patent number
US05446212

Reaction notes

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