Bis(triphenylphosphine)palladium chloride

It is a yellow solid that is soluble in some organic solvents.

This compound may be prepared by treating palladium(II) chloride with triphenylphosphine:[2][3] Upon reduction with hydrazine in the presence of excess triphenylphosphine, the complex is a precursor to tetrakis(triphenylphosphine)palladium, Pd(PPh3)4:[4] Several crystal structures containing PdCl2(PPh3)2 have been reported.

In all of the structures, PdCl2(PPh3)2 adopts a square planar coordination geometry and the trans isomeric form.

[5][6][7][8] The complex is used as a pre-catalyst for a variety of coupling reactions.

Using bis(triphenylphosphine)palladium chloride as the catalyst, triflates and boronic acids have been coupled on an 80 kilogram scale in good yield.

NFPA 704 four-colored diamond Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform Flammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oil Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special hazards (white): no code
One-pot Procedure for the Synthesis of Unsymmetrical Diarylalkynes.