Dichlorobis(tri-o-tolylphosphine)palladium(II)

• CAT Number: L040260
• CAS Number: 40691-33-6
• Molecular Formula: C42H42Cl2P2Pd
• Molecular Weight: 786.10
• Purity: ≥95%
• IUPAC Name: dichloropalladium;tris(2-methylphenyl)phosphane
• InChI: InChI=1S/2C21H21P.2ClH.Pd/c2*1-16-10-4-7-13-19(16)22(20-14-8-5-11-17(20)2)21-15-9-6-12-18(21)3;;;/h2*4-15H,1-3H3;2*1H;/q;;;;+2/p-2
• InChIKey: OTYPIDNRISCWQY-UHFFFAOYSA-L
• SMILES: CC1=CC=CC=C1P(C2=CC=CC=C2C)C3=CC=CC=C3C.CC1=CC=CC=C1P(C2=CC=CC=C2C)C3=CC=CC=C3C.Cl[Pd]Cl

Dichlorobis(tri-o-tolylphosphine)palladium(II)（Cat No.:L040260）is a square planar palladium(II) complex featuring two chloride ligands and two bulky tri-o-tolylphosphine ligands. This compound is widely used as a catalyst or catalyst precursor in cross-coupling reactions such as Suzuki, Heck, and Stille couplings. The o-tolyl substituents on the phosphine ligands provide steric hindrance that enhances selectivity and prevents catalyst deactivation. Its stability and solubility in organic solvents make it suitable for homogeneous catalysis in complex molecule synthesis. It plays a crucial role in forming carbon–carbon and carbon–heteroatom bonds in pharmaceutical and materials chemistry.