Optimizing the Synthesis Route 4-Bromo-1-Fluoro-2-Nitrobenzene Manufacturing Process
- [Reaction Efficiency]: NBS-mediated bromination achieves >97% assay purity under controlled temperatures.
- [Supply Security]: Bulk tonnage available with verified factory-direct stability and logistics.
- [Quality Assurance]: REACH-compliant production suitable for high-value pharma intermediates.
In the landscape of fine chemical manufacturing, securing a reliable source for critical intermediates is paramount for maintaining production schedules and product efficacy. 4-Bromo-1-fluoro-2-nitrobenzene (CAS 364-73-8) serves as a vital building block in the synthesis of pharmaceuticals and agrochemicals. For procurement officers and technical directors, understanding the underlying manufacturing process is not merely academic; it is a strategic necessity for ensuring batch-to-batch consistency and cost-effective scaling.
As a premier global manufacturer, NINGBO INNO PHARMCHEM CO.,LTD. specializes in delivering process-scale purity for complex fluorinated nitrobenzene derivatives. This technical overview dissects the production methodologies, quality parameters, and supply chain advantages associated with this key intermediate.
Technical Analysis of Synthesis Pathways
For process chemists and R&D teams, the selection of a synthesis route directly impacts impurity profiles and downstream processing costs. The manufacturing of CAS 364-73-8 typically involves the electrophilic bromination of fluorinated nitrobenzene precursors. A predominant industrial method utilizes 1-fluoro-2-nitrobenzene as the starting material.
Optimized Bromination Protocol
The reaction generally proceeds using N-Bromosuccinimide (NBS) as the brominating agent in an acetic acid solvent system. Critical control parameters include maintaining the reaction temperature at approximately 15°C to minimize poly-brominated byproducts. Upon completion, the mixture is hydrolyzed into ice water, and the crude product is extracted using organic solvents such as ethyl acetate.
Following concentration under reduced pressure, the crude solid undergoes recrystallization, often from petroleum ether or similar non-polar solvents. This purification step is essential for achieving industrial purity standards. Data indicates that optimized protocols can yield assay values exceeding 98%, with reaction yields reaching up to 97.1% under strict process control. This high efficiency reduces waste generation and improves the overall commercial viability of the production run.
Quality Specifications and Physical Properties
Ensuring material consistency requires rigorous adherence to technical specifications. Below is a standard quality parameter table used for verifying incoming materials or validating supplier capabilities.
| Parameter | Specification | Test Method |
|---|---|---|
| CAS Number | 364-73-8 | N/A |
| Molecular Formula | C6H3BrFNO2 | N/A |
| Molecular Weight | 220.0 g/mol | Calculated |
| Appearance | Light Yellow to Brown Solid | Visual |
| Assay (Purity) | ≥ 98.0% (GC/HPLC) | Gas Chromatography |
| Melting Point | 18-19 °C | DSC / Capillary |
| Water Content | ≤ 0.5% | Karl Fischer |
Procurement Strategy and Supply Chain Stability
For procurement managers, the focus shifts from reaction kinetics to supply chain resilience and cost management. Sourcing 4-Bromo-1-fluoro-2-nitrobenzene from a dedicated manufacturer offers significant advantages over trading companies, particularly regarding bulk price negotiations and lead times. Factory-direct engagement eliminates intermediate markups and provides transparency regarding production capacity.
When evaluating suppliers, it is critical to request a batch-specific COA (Certificate of Analysis) and MSDS to verify compliance with safety and quality standards. Volatility in raw material costs for fluorinated compounds necessitates a partner with stable inventory levels. NINGBO INNO PHARMCHEM CO.,LTD. maintains robust stock levels to support continuous manufacturing operations for our clients, ensuring that tonnage quantities are available without compromising on quality.
Regulatory Compliance and Commercial Viability
Executive decision-makers must consider regulatory frameworks such as REACH and TSCA when integrating new intermediates into their supply chain. A compliant manufacturing process ensures that the final drug substance or agrochemical product faces fewer regulatory hurdles during registration. Our production facilities adhere to strict environmental and safety protocols, mitigating risk for downstream partners.
For those seeking to validate specifications or discuss large-volume requirements, we recommend reviewing our detailed product page for 4-Bromo-1-fluoro-2-nitrobenzene to access comprehensive technical data sheets.
Conclusion
The efficient production of 4-Bromo-1-fluoro-2-nitrobenzene relies on precise temperature control, optimized bromination reagents, and rigorous purification steps. By partnering with an experienced chemical manufacturer, organizations can secure high-purity intermediates that drive successful synthesis outcomes.
To initiate a supply agreement or request technical documentation, please contact our technical sales team for a batch-specific COA, SDS, or bulk pricing quote.