4-Bromo-2,6-difluoroaniline
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Chemical Product Description & Applications
4-Bromo-2,6-difluoroaniline is a halogenated aromatic amine with separate nitrogen and aryl-bromide reaction sites. The amino group supports acylation and heterocycle formation, while the bromine permits coupling reactions that extend the aromatic framework. The two fluorine substituents provide a defined substitution pattern that can be retained in downstream products.
This combination makes the compound relevant to both pharmaceutical-intermediate and functional-molecule synthesis. Amino-group conversion can build nitrogen-containing rings, whereas carbon coupling at the brominated position can generate diaryl, terphenyl or arylethynyl structures. The material therefore supplies more than an aromatic amine alone: it allows different reaction sequences to address the amino group and the para carbon connection point independently.
Typical Applications
- Fluorinated benzimidazole intermediates: Used as the halogenated aniline fragment in amidine formation and subsequent cyclization routes, including preparation of abemaciclib-related benzimidazole structures.
- Fluorogenic analytical reagent synthesis: Used in preparation of bromofluorobenzoxadiazole-derived reagents reported for chromatographic determination of aminothiols, supplying the fluorinated aromatic starting framework.
- Arylalkyne and terphenyl construction: Used in coupling chemistry to prepare fluorinated arylethynyl and extended aromatic amines, including substituted tolane and terphenyl derivatives.
Specifications
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | Solid; color consistent with the reference sample | Visual inspection |
| Identification | Consistent with authenticated reference | FTIR fingerprint comparison |
| Chromatographic purity | ≥98.0 area% | HPLC with suitable UV or CAD detection |
| Total organic impurities | ≤2.0 area% | HPLC, area normalization |
| Largest individual impurity | ≤1.0 area% | HPLC, area normalization |
| Water | ≤1.0% w/w | Karl Fischer titration |
Specifications describe the standard grade. Tolerance, test method and documentation package are confirmed per order.
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