DPPF Pd G4
[CAS# 1621274-17-6]

Identification

• Classification: Organic raw materials >> Organometallic compound >> Organic palladium
• Name: DPPF Pd G4
• Synonyms: (SP-4-3)-[1-(Diphenylphosphino-?P)-1'-(diphenylphosphino)ferrocene](methanesulfonato-?O)[2'-(methylamino-?N)[1,1'-biphenyl]-2-yl-?C]palladium
• Molecular Formula: C₄₈H₄₃FeNO₃P₂PdS
• Molecular Weight: 938.14
• CAS Registry Number: 1621274-17-6
• SMILES: CNC1=C(C2=C([Pd]OS(=O)(C)=O)C=CC=C2)C=CC=C1.[C]3(P(C4=CC=CC=C4)C5=CC=CC=C5)[C][C][C][C]3.[C]6(P(C7=CC=CC=C7)C8=CC=CC=C8)[C][C][C][C]6.[Fe]

Properties

• Melting point: 201 °C

Safety Data

• Hazard Symbols: GHS07 Warning
• Risk Statements: H302-H315-H319-H335
• Safety Statements: P261-P280-P301+P312-P302+P352-P305+P351+P338

Discovery and Applications

DPPF Pd G4 is a sophisticated palladium complex known for its role in advancing catalytic chemistry, particularly in cross-coupling reactions. The complex features the DPPF ligand, which stands for 1,1'-bis(diphenylphosphino)ferrocene. The "G4" designation signifies that this is the fourth generation of the DPPF-based palladium system, reflecting ongoing enhancements in its design and application.

The DPPF ligand is a bidentate phosphine with a ferrocene backbone, known for its ability to stabilize palladium centers effectively. The ligand's structure consists of two diphenylphosphine groups attached to a ferrocene core. This arrangement provides both steric bulk and electronic donation to the palladium center, which enhances the metal's catalytic properties. The ferrocene moiety contributes to the ligand's rigidity and stability, allowing for more consistent catalytic performance.

The development of DPPF Pd G4 builds upon the successes of earlier generations of DPPF-based complexes. The fourth generation incorporates improvements that enhance the ligand's steric and electronic properties, resulting in more efficient and selective catalysis. These refinements make DPPF Pd G4 particularly valuable in a variety of chemical reactions.

One of the primary applications of DPPF Pd G4 is in cross-coupling reactions, such as the Suzuki-Miyaura and Negishi couplings. These reactions are essential for forming carbon-carbon bonds, which are foundational in the synthesis of complex organic molecules, including pharmaceuticals and advanced materials. The advanced performance of DPPF Pd G4 in these reactions is attributed to its optimized ligand environment, which promotes higher yields and faster reaction rates.

In addition to cross-coupling reactions, DPPF Pd G4 is also used in other catalytic processes, including oxidative and reductive transformations. The stability and reactivity of the palladium center, aided by the DPPF ligand, enable effective catalysis across a range of chemical reactions.

The development of DPPF Pd G4 highlights the importance of ligand design in enhancing catalytic efficiency. By improving the steric and electronic properties of the ligand, researchers have achieved notable advances in selectivity and activity, making this complex a valuable tool in both academic research and industrial applications.

In summary, DPPF Pd G4 is an advanced palladium complex that plays a crucial role in organic synthesis. Its specialized DPPF ligand system enhances catalytic performance, making it a powerful tool for a wide range of chemical reactions.

References

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