(11bR)-2,6-Bis(diphenylphosphino)-N,N-dimethyldinaphtho[2,1-d:1',2'-f]-1,3,2-dioxaphosphepin-4-amine(CAS: 913617-04-6)

This compound is a diphosphine ligand with a molecular weight of approximately 798.4 g/mol. It exhibits good solubility in organic solvents like THF and poor solubility in water. It is highly reactive towards metal ions, particularly palladium, and is often used in catalytic cross-coupling reactions. Its crystalline form is stable under normal laboratory conditions.

This ligand is typically synthesized via the condensation of 2,6-diphenylphosphono-dimethylamine with diphosphonic acid. The reaction is usually carried out under an inert atmosphere using a catalyst such as triphenylphosphine. The yield is generally around 70-80%, and the product is purified by recrystallization from organic solvents.

This compound is primarily used in the pharmaceutical industry for preparing palladium catalysts in cross-coupling reactions. It is also utilized in the polymer industry for controlled polymerization processes and in semiconductor manufacturing for the development of metal-organic precursors.

When handling this compound, ensure the use of proper personal protective equipment (PPE) including gloves, goggles, and a lab coat. Work in a well-ventilated fume hood to minimize exposure. Spills should be carefully managed using appropriate absorbents. Always refer to the Safety Data Sheet (SDS) for detailed handling and disposal instructions.