Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Diethyl Ether | HCID 3283 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | N-Phenyl-o-phenylenediamine | HCID 68297 | — |
| Reactant | 2,4-Difluorobenzoyl chloride | HCID 588081 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 20826172 | HCID 20826172 | 60% |
Reaction Steps
N-phenyl-1,2-phenylenediamine (1.84 g, 10 mmol) and 40 ml of dichloromethane were charged in a 250 ml round bottle, 3 ml of triethylamine was added, and the mixture was cooled to 0° C. 2,4-Difluoro-benzoyl chloride (1.94 g, 11 mmol) was dissolved in 40 ml of dichloromethane and then slowly added to the 250 ml round bottle. The reaction was conducted under a nitrogen atmosphere for 6 hours. After the reaction was complete, ether was added to form precipitate. The solid product was collected by filtration, washed with ether several times, and heated under reduced pressure to form 2-(2,4-difluoro-phenyl)-1-phenyl-1H-benzoimidazole (yield=1.83 g, 60%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07601437B2 |
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| Source dataset | uspto-grants-2009_10 |
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| ORD ID | ord-c1301280758c4ea1b304b06d30c008a6 |
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| Source note | uspto-grants-2009_10 |
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