Di-tert-butylphenylphosphonium tetrafluoroborate
CAS: 612088-55-8
Category: Organic Intermediates
| Purity | Catalyst Grade ≥98%; High-Purity Grade ≥99% |
| Molecular Formula | C14H24BF4P |
| Molecular Weight | 338.12 |
| Appearance | White to off-white crystalline powder |
| Packaging | 1 g, 5 g, 10 g, 25 g, 100 g amber glass bottle or laminated aluminum foil bag under nitrogen |
| Testing Indicators | Appearance — Visual inspection; Identification — ¹H NMR, ¹³C NMR and ³¹P NMR; Counterion identification — ¹⁹F NMR and ¹¹B NMR; Molecular weight confirmation — HRMS or LC-MS; Purity — HPLC; Assay — Quantitative HPLC; Water content — Karl Fischer titration (GB/T 6283); Tetrafluoroborate content — Ion chromatography or ¹⁹F NMR; Residual solvents — GC (ICH Q3C); Elemental analysis — CHN; Melting range — Capillary melting point determination. |
| Storage Notes | Store tightly sealed in a cool, dry, well-ventilated area under nitrogen or argon. Protect from moisture, direct sunlight, and strong oxidizing agents. Recommended storage temperature is 2–8°C for long-term stability. Avoid repeated exposure to humid air. |
| Lead Time | 10 days |
A phosphonium tetrafluoroborate salt widely used as a stable precursor for di-tert-butylphenylphosphine. Commonly employed in the preparation of air-sensitive phosphine ligands, transition-metal phosphine complexes, homogeneous catalysts, and organophosphorus intermediates. Frequently utilized in palladium-, rhodium-, iridium-, nickel-, and ruthenium-catalyzed cross-coupling, hydrogenation, and carbon-carbon bond-forming reactions in pharmaceutical and fine chemical synthesis.