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644722

Sigma-Aldrich

Pd EnCat® 40

extent of labeling: 0.4 mmol/g Pd loading

Synonym(s):

Palladium acetate microencapsulated in polyurea matrix

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About This Item

MDL number:
MFCD06798791
UNSPSC Code:
12352300
NACRES:
NA.22

contains

0.37-0.44 mmol/g palladium

Quality Level

200

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

Related Categories

General description

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

Application

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

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.

Signal Word

Danger

Hazard Classifications

Aquatic Chronic 3 - Eye Irrit. 2 - Flam. Sol. 2 - Repr. 1B - Skin Irrit. 2

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 3

Flash Point(F)

-9.4 - -7.6 °F

Flash Point(C)

-23 - -22 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Yu, J.Q., et al.
Chemical Communications (Cambridge, England), 678-697 (2003)
Steven V Ley et al.
Chemical communications (Cambridge, England), (10), 1134-1135 (2002-07-19)
Palladium(II) acetate microencapsulated in polyurea (MC-[Pd]) is an economical and versatile heterogeneous catalyst for a range of phosphine-free cross-coupling reactions in both conventional solvents and supercritical carbon dioxide (scCO2); the catalyst can be recovered by a simple filtration and recycled
Steven V Ley et al.
Organic letters, 5(24), 4665-4668 (2003-11-25)
[reaction: see text] Pd nanoparticles (approximately 2 nm in size) microencapsulated in polyurea is an efficient and recyclable catalyst for reductive ring-opening hydrogenolysis of epoxides, using either HCOOH/Et(3)N or H(2) as a hydrogen donor.

Articles

EnCat™ & Other Catalysts

We offer EnCat and a variety of transition metal-based encapsulated catalysts for applications in areas such as Suzuki, Stille, and Heck couplings, carbonylations, hydrogenation, hydrogenolysis, and dihydroxylation.

Related Content

Pd EnCat™ Encapsulated Palladium Catalysts

Homogeneous palladium catalysts are widely utilized due to their versatility, reactivity and functional group tolerance.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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