(R)-(+)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl
CAS: 76189-55-4
Category: Organic Intermediates
| Purity | Reagent Grade ≥98.0% (min. 99.0% ee optical purity) |
| Molecular Formula | C44H32P2 |
| Molecular Weight | 622.69 |
| Appearance | White to light yellow powder or crystals |
| Packaging | 1G/glass bottle with plastic insert, 5G, 25G |
| Testing Indicators | Appearance — Visual inspection; Purity — HPLC or GC; Optical purity — Chiral HPLC; Identification — NMR (¹H, ³¹P), IR, MS; Melting point — Capillary method. |
| Storage Notes | Store at room temperature in a cool, dark place (recommended <15°C). Keep container tightly closed and stored under an inert gas (e.g., nitrogen or argon) to prevent oxidation. Store in a dry, well-ventilated area. |
| Lead Time | 10 days |
A chiral chelating phosphine ligand widely used in asymmetric catalysis. It forms the basis of numerous homogeneous catalysts (e.g., Rh and Ru complexes) for highly enantioselective reactions like hydrogenation, isomerization, and C-C bond formation, making it a crucial reagent in the synthesis of chiral pharmaceuticals, agrochemicals, and fine chemicals.