901218

VPhos Pd G4

95%

• Empirical Formula (Hill Notation): C₄₇H₆₄NO₄PPdS
• CAS Number: 1848244-57-4
• Molecular Weight: 876.47
• UNSPSC Code: 12352202

Properties

• assay: 95%
• form: powder or crystals
• feature: generation 4
• reaction suitability: reaction type: Buchwald-Hartwig Cross Coupling Reaction; reaction type: Heck Reaction; reaction type: Hiyama Coupling; reaction type: Negishi Coupling; reaction type: Sonogashira Coupling; reaction type: Stille Coupling; reaction type: Suzuki-Miyaura Coupling; reagent type: catalyst; reaction type: Cross Couplings
• functional group: phosphine

Description

Application

Buchwald palladacycle precatalyst with new biaryl(dialkyl)phosphine ligand, VPhos, has an improved activity profile for the reductive coupling of non-aromatic heterocyclic alkyl bromides. Its combined use with a surfactant system of octanoic acid/sodium octanoate enables Negishi coupling and access to diverse C(sp³)–C(sp²) cross-coupled products.

It is a fourth-generation (G4) Buchwald precatalysts are similar to the third generation (G3) precatalysts except that the amino group on the biphenyl backbone is methylated. This modification helps to prevent the limitations of using the third generation precatalysts. It is air-, moisture-, and thermally stable and shows good solubility in common organic solvents.

Other Notes

An Improved System for the Aqueous Lipshutz–Negishi Cross-Coupling of Alkyl Halides with Aryl Electrophiles

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable