tris(4-methylphenyl)phosphane, CAS No. 1038-95-5

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1038-95-5

Catalog No. EBD73828

CAS 1038-95-5

Name tris(4-methylphenyl)phosphane

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Basic Information

Synonyms: tris-p-tolylphosphane tris(4-methylphenyl)phosphane labotest-bbltbb005429 auroraka-1142 tri-4-tolylphosphine tris(p-tolyl)phosphine tri-p-tolylphosphine tris(4-methylphenyl)phosphine tris(4-tolyl)phosphine phosphorustri-p-tolyl phosphine,tris(4-methylphenyl)- Tri-p-tolyl-phosphane TPTP tri(p-tolyl)phosphine Tri(4-methylphenyl)phosphine

Molecular Formula: C21H21P

Molecular Weight: 304.37

MDL Number: MFCD00008542

Categories: Synthetic Chemistry > Catalysts and Ligands > Phosphorus Ligands Synthetic Chemistry > Organic Building Blocks > Phosphorus Compounds

Product Description:

Tris(4-methylphenyl)phosphine is an organophosphorus compound featuring a central phosphorus atom bonded to three 4-methylphenyl (p-tolyl) groups. It is a white to off-white crystalline solid with a molecular formula of C21H21P and a molecular weight of 304.36 g/mol. This compound is primarily utilized as a ligand in transition metal-catalyzed reactions. Its electron-donating methyl groups on the phenyl rings enhance the electron density on the phosphorus atom, making it a strong σ-donor ligand. This property is valuable in various catalytic processes, including cross-coupling reactions (e.g., Suzuki, Heck, Sonogashira couplings), hydrogenation, and hydroformylation, where it can stabilize metal complexes and influence catalytic activity and selectivity. As a versatile synthetic building block, it serves as a precursor for other phosphine ligands and organophosphorus materials. It is also used in the synthesis of phosphonium salts and as a reagent in organic synthesis. Handling requires standard precautions for air-sensitive organophosphorus compounds, as it may be susceptible to oxidation.

Physical Properties

Melting Point: 144-148 °C(lit.)

Boiling Point: 399.8 °C at 760 mmHg

Flash Point: 206.3 °C

Analytical Data

Appearance: white to light yellow crystal powder