CID 139054234

• CAT Number: L041974
• CAS Number: 19978-61-1
• Molecular Formula: C26H24Cl2P2Pd
• Molecular Weight: 575.71
• Purity: ≥95%
• IUPAC Name: 2-diphenylphosphanylethyl(diphenyl)phosphane;palladium(2+);dichloride
• InChI: InChI=1S/C26H24P2.2ClH.Pd/c1-5-13-23(14-6-1)27(24-15-7-2-8-16-24)21-22-28(25-17-9-3-10-18-25)26-19-11-4-12-20-26;;;/h1-20H,21-22H2;2*1H;/q;;;+2/p-2
• InChIKey: LDJXFZUGZASGIW-UHFFFAOYSA-L
• SMILES: C1=CC=C(C=C1)P(CCP(C2=CC=CC=C2)C3=CC=CC=C3)C4=CC=CC=C4.Cl[Pd]Cl

Dichloropalladium;2-diphenylphosphanylethyl(diphenyl)phosphane(CAT: L041974) is a palladium(II) complex coordinated with a bidentate phosphine ligand—2-diphenylphosphanylethyl(diphenyl)phosphane (commonly known as DPEphos)—and two chloride ligands. This air-stable organometallic compound is widely used as a precatalyst in homogeneous catalysis, especially in carbon–carbon and carbon–heteroatom bond-forming reactions such as Suzuki, Heck, and Buchwald–Hartwig couplings. The DPEphos ligand offers a wide bite angle and strong electron-donating properties, enhancing catalytic efficiency, regioselectivity, and functional group tolerance. This complex is highly valued in pharmaceutical and fine chemical synthesis for facilitating efficient, scalable cross-coupling processes under mild conditions, particularly with sterically hindered or electronically challenging substrates.