HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → 1-Bromo-3,5-bis(trifluoromethyl)benzene
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 1,3-Dibromo-5,5-dimethylhydantoin | HCID 6479 | — |
| Reactant | Benzene, 1,3-bis(trifluoromethyl)- | HCID 223106 | — |
| Solvent | Acetic acid sulfuric acid | HCID 23350293 | — |
| Product | 1-Bromo-3,5-bis(trifluoromethyl)benzene | HCID 67602 | — |
Reaction Steps
In a preferred embodiment, 1,3-bis(trifluoromethyl)benzene is brominated with N,N′-dibromo-5,5-dimethylhydantoin in sulfuric acid/acetic acid at 45° C. The reaction mixture is then diluted into cold water, and the phases are separated, washed with aqueous sodium hydroxide (preferably 5 N sodium hydroxide) and allowed to separate to produce 3,5-bis(trifluoromethyl)bromobenzene.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06255545B1 |
| Source dataset | uspto-grants-2001_07 |
| ORD ID | ord-369bc9ee89f04024abfda206967fb516 |
| Source note | uspto-grants-2001_07 |