Participants
| Role | Name | HCID | Charge |
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| Reactant | Bisphenol A | HCID 6623 | — |
| Reactant | 2,3,5,6-Tetrabromo-4-[2-(4-hydroxyphenyl)propan-2-yl]phenol | HCID 54240982 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | bisphenol-A methanol | HCID 131719113 | — |
Reaction Steps
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.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05446212 |
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| Source dataset | uspto-grants-1995_08 |
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| ORD ID | ord-8198559d3ad543bcba51591e89fd8178 |
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| Source note | uspto-grants-1995_08 |
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