HuagongsheHuagongshe Chemistry Print Report · For research reference only
Benzenamine, 2-chloro-5-(trifluoromethyl)- → 4-Bromo-2-chloro-5-(trifluoromethyl)aniline
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Benzenamine, 2-chloro-5-(trifluoromethyl)- | HCID 8475 | — |
| Reactant | N-bromobutanimide | HCID 67184 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 4-Bromo-2-chloro-5-(trifluoromethyl)aniline | HCID 14099398 | 70.7% |
Reaction Steps
A solution of N-bromosuccinimide (1.0 g, 5.6 mmol) dissolved in DMF (3 mL) was slowly added to a mixture of 3-amino-4-chlorobenzotrifluoride (1 g, 5 mmol) dissolved in DMF (2 mL) and the reaction mixture was stirred at RT for 20 min, concentrated, and extracted with ethyl acetate/water. The organic layer was dried over sodium sulfate, filtered, concentrated, and purified by flash chromatography (eluted with 100% hexanes) to produce the title intermediate as a reddish colored oil (970 mg, 70% yield). (m/z): [M+H]+ calcd for C7H4BrClF3N 273.92, 275.92. found 276.2.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09260414B2 |
| Source dataset | uspto-grants-2016_02 |
| ORD ID | ord-d45be7bbea6f49109ec1b0d09e13eae5 |
| Source note | uspto-grants-2016_02 |