Products Description
It is usually a crystalline powder of deep purple to black or brown color. It is soluble in common organic solvents such as dichloromethane, chloroform, benzene, and tetrahydrofuran (THF), but insoluble in water.
As a zero-valent palladium complex, Pd₂(dba)₃ is sensitive to air and moisture. Although it can remain stable for a short time in dry air, prolonged exposure to air or contact with moisture will cause its slow decomposition, generating palladium black or other oxidation products.
In the reaction system, the dba ligand easily dissociates from the palladium center, releasing active zero-valent palladium species, thereby initiating the catalytic cycle.
Products Specification
| Product name | Pd₂(dba)₃/Tris(dibenzylideneacetone)dipalladium |
| CAS NO | 51364-51-3 |
| ITEM NO | M553 |
| Appearance | Purple to black powder |
| Purity | 99% |
| Loss on Drying | ≤ 0.5 % |
| Melting point | 152-155°C |
| Package | 1g/10g/100g, etc. |
| Delivery | 2-3days |
| Storage | 2-8°C |
| MSDS/COA/TDS | Connect us |
Products Application
Pd₂(dba)₃ is one of the most important catalyst precursors in organic synthesis, and is widely used in various reactions for the formation of carbon-carbon bonds and carbon-heteroatom bonds.
Cross-coupling reactions: It is commonly used in Suzuki-Miyaura coupling (aromatic halides with organic boron reagents), Heck reaction (alkenes with aromatic halides), Stille coupling (aromatic halides with organic tin reagents), and Buchwald-Hartwig amide formation reaction (aromatic halides with amines). In these reactions, it is often used in combination with phosphine ligands (such as triphenylphosphine) to enhance catalytic efficiency.
Photonic materials: OLED, organic semiconductors, synthesis of liquid crystal molecules.
Organic synthesis: ring addition, C-H activation, carbonylation reactions.
FAQ
Q: Why does Pd₂(dba)₃ deactivate quickly after opening?
A: It is sensitive to oxygen, moisture, and light; zero‑valent palladium is easy to be oxidized, resulting in decreased catalytic activity.
Q: Is 2‑8 ℃ cold storage mandatory? Can it be stored sealed at room temperature?
A: Refrigeration is recommended for long‑term storage. Short‑term usage is allowed at room temperature with strict argon‑sealed and light‑proof conditions; long‑term room‑temperature storage is not recommended.
Q: How to judge whether the product has deteriorated and cannot be used?
A: Normal appearance is a dark purple‑black powder. Grey/yellow color or caking means oxidative degradation and poor catalytic activity.
Q: Can you supply a small‑gram‑scale R&D sample?
A: Samples are available. The minimum sample size can be discussed upon request.
Q: Can a palladium catalyst be simply removed by filtration after reaction?
A: It is a homogeneous catalyst dissolved in the reaction mixture; palladium cannot be removed by simple filtration.
Q: Is an additional phosphine ligand necessary for a Suzuki reaction with Pd₂(dba)₃?
A: Ligand is required for most systems. Without ligand, catalytic activity is very poor, aryl chloride substrates are hardly converted.
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