Diphenyl-2-pyridylphosphine is an organophosphorus compound with the formula P(C6H5)2(2-C5H4N). It is the most widely used mono-pyridylphosphine ligand. Other mono-pyridylphosphines ligands (3-, 4-) are not common in chemical literature; however, tris-pyridylphosphines have been thoroughly investigated as ligands in transition metal complexes used for catalysis. Pyridylphosphines, including diphenyl-2-pyridylphosphine, may bind transition metals as monodentate or bidentate ligands4. Diphenyl-2-pyridylphosphine behaves as a P-bound monodentate ligand, or a P,N-bound bidentate ligand. Diphenyl-2-pyridylphosphine is a sought after ligand for its ability to relay protons to transition metals such as palladium(II) in homogeneous catalysis.

CAS：37943-90-1
中文别名：二苯基-2-吡啶基膦;2-吡啶基二苯基膦;二苯基-2-吡啶磷;2-二苯基膦基吡啶;
英文别名：2-(Diphenylphosphino)pyridine;2-(Diphenylphosphino)pyridine 2-Pyridyldiphenylphosphine Diphenyl(2-pyridinyl)phosphine;diphenyl(pyridin-2-yl)phosphane;
分子式：C17H14NP
分子量：263.274
精确质量：263.086
Psa：26.48
Logp：2.8398

MDL号：MFCD00192108

外观与性状：黄色至橙色结晶粉末
沸点：377.5ºC at 760 mmHg
熔点：82-84°C (dec.)(lit.)
闪点：182.1ºC

安全说明：S26-S36
WGK Germany：3
危险类别码：R36/37/38
海关编码：2933399090
危险品标志：Xi
危险性描述：H315; H319; H335; H413
危险标志：GHS07
危险性防范说明：P261; P305 + P351 + P338
信号词：Warning