2-(Di-tert-butylphosphino)biphenyl
- CAS No.224311-51-7
- GradeIndustrial / Pharmaceutical
- Availability● In Stock
High-purity JohnPhos ligand designed for palladium-catalyzed coupling reactions. Ideal for pharmaceutical process development and advanced organic synthesis applications.
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Product Overview
2-(Di-tert-butylphosphino)biphenyl, widely recognized in the industry by its common name JohnPhos, represents a critical class of biaryl phosphine ligands used in modern organometallic chemistry. This specialized chemical compound is engineered to facilitate efficient catalytic cycles, particularly in palladium-mediated transformations. Our manufacturing process ensures exceptional batch-to-batch consistency, making it a reliable choice for research laboratories and industrial scale-up operations alike.
As a key component in cross-coupling methodologies, this phosphine ligand offers superior steric and electronic properties that enhance catalyst turnover numbers. The molecule features a bulky tert-butyl substitution pattern which protects the metal center while maintaining high reactivity. This balance is essential for achieving high yields in complex synthetic routes where traditional ligands may fail.
Industrial Applications
The primary utility of this product lies in its capability to activate palladium catalysts for carbon-carbon and carbon-heteroatom bond formation. It is extensively utilized in the synthesis of pharmaceutical intermediates, agrochemicals, and advanced materials. The robust nature of the ligand allows it to perform under varied reaction conditions, providing chemists with flexibility during process optimization.
- Efficient promoter for Suzuki-Miyaura cross-coupling reactions.
- Highly effective in Buchwald-Hartwig amination processes.
- Supports challenging substrate scopes including sterically hindered aryl chlorides.
- Compatible with diverse solvent systems used in fine chemical manufacturing.
Technical Specifications
We adhere to strict quality control protocols to guarantee the integrity of every shipment. The following table outlines the key physical and chemical parameters verified during our standard analysis. Each batch is accompanied by a Certificate of Analysis (COA) to ensure compliance with international standards.
| Parameter | Specification |
|---|---|
| CAS Number | 224311-51-7 |
| Molecular Formula | C20H27P |
| Molecular Weight | 298.40 g/mol |
| Appearance | Off-white to white powder |
| Purity (GC) | ≥98.0% |
| Melting Point | 84-87°C |
| Water Solubility | Insoluble |
Quality Assurance and Handling
Proper storage is vital to maintain the stability of phosphine ligands. We recommend keeping the material in a cool, dry place under an inert atmosphere to prevent oxidation. Our packaging solutions are designed to minimize exposure to air and moisture during transit. As a global manufacturer, we prioritize safety and compliance, ensuring all products meet regulatory requirements for hazardous materials transport.
For large-scale production needs, we offer competitive bulk pricing and customizable packaging options. Our technical support team is available to assist with synthesis route optimization and provide detailed manufacturing process documentation. Trust our expertise for your critical organic synthesis requirements.
