644722 Sigma-Aldrich

Pd EnCat® 40

extent of labeling: 0.4 mmol/g Pd loading

Synonym: Palladium acetate microencapsulated in polyurea matrix



Related Categories Catalysis and Inorganic Chemistry, Chemical Synthesis, Palladium Catalysts, Pd EnCat
contains   0.37-0.44 mmol/g palladium
reaction suitability   core: palladium
  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
extent of labeling   0.4 mmol/g Pd loading
storage temp.   room temp


General description

It is an encapsulated catalyst (EnCat®), wherein palladium acetate is microencapsulated within a polyurea matrix, which prevents palladium leaching.


Reaxa Technology

Recyclable, immobilized catalyst system that simplifies removal of Pd in C-C bond forming and reduction processes.


1, 10, 100 g in glass bottle

Features and Benefits

The advantages of using Pd EnCat® catalysts are:
• low residual metal levels in crude product
• easy recovery of catalyst
• compatibility of immobilized metal with various ligands to effect C-C bond forming reactions
• safer and easier to handle than Pd/C for hydrogenation
• efficiency and economy gains through recovery and recycling

Other Notes

Matrix content 40%

Legal Information

PdEncat® technology.

EnCat is a registered trademark of Reaxa Ltd.

Safety & Documentation

Safety Information

Signal word 
UN 3175 4.1 / PGII
WGK Germany 
Flash Point(F) 
-9.4 - -7.6 °F
Flash Point(C) 
-23 - -22 °C


Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles


Pd EnCat™ Encapsulated Palladium Catalysts

Homogeneous palladium catalysts are widely utilized due to their versatility, reactivity and functional group tolerance. However, using homogeneous catalysts presents some problems including:
Chemfiles Volume 4 Article 7
Keywords: C-C bond formation, Carbonylations, Catalysis, Coupling reactions, Cross couplings, Diffusion, Filtration, Heck Reaction, Hydrogenations, Immobilization, Ligands, Microwave synthesis, Polymerization reactions, Purification, Reductions, Solvents, Stille coupling, Suzuki coupling

Supported/Encapsulated Palladium Catalysts

Palladium has become one of the most commonly used metal for cross-coupling transformations. However, the use of homogeneous palladium presents several drawbacks that can be overcome by attaching the...
William Sommer
Aldrich ChemFiles 2007, 7.10, 23.
Keywords: Carbonylations, Catalysis, Chemfiles, Coupling reactions, Cross couplings, Immobilization, Ligands

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Reaxa Technology

Easier, Faster, and Cleaner Reactions In partnership with Reaxa Ltd., Sigma-Aldrich is pleased to offer several technology platforms that allow for easier, faster, and cleaner processes. The technolo...
Keywords: Catalysis, Filtration, Metal scavengers, Methods, Purification

Peer-Reviewed Papers


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