Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | 4-Bromo-2-fluoro-5-methylbenzonitrile | HCID 34175419 | — |
| Solvent | Trifluoroacetic acid | HCID 6422 | — |
| Product | HCID 66606809 | HCID 66606809 | 95% |
Reaction Steps
To a solution of 4-bromo-2-fluoro-5-methylbenzonitrile (40 g, 190 mmol) in a mixture of sulfuric acid (98%) and TFA (v/v=4:1, 480 mL) was stirred at 80° C. for 16 h. After the mixture was cooled to room temperature, the resulting mixture was poured into ice-cold water. The resulting precipitate was collected by filtration, washed with water and dried under reduced pressure to give the title compound (41 g, 95% yield) as a white solid. MS (ESI) m/z 232.0 [M+1]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08569494B2 |
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| Source dataset | uspto-grants-2013_10 |
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| ORD ID | ord-b520d6bfc6784dab9c8633fd2d2dd8d6 |
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| Source note | uspto-grants-2013_10 |
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