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Key Documents

644714

Sigma-Aldrich

Pd EnCat® 30

extent of labeling: 0.4 mmol/g Pd loading

Sinónimos:

Palladium acetate, microencapsulated in polyurea matrix

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About This Item

MDL number:
MFCD06798790
UNSPSC Code:
12161600
NACRES:
NA.22

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

Categorías relacionadas

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.
While Pd EnCat 40 shows excellent performance in a variety of transformations, Pd EnCat 30, with lower matrix content, shows similar performance but with improved kinetics while maintaining the mechanically robust nature of Pd EnCat 40 under similar conditions.

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 30%

Legal Information

Pd Encat® technology.
EnCat is a registered trademark of Reaxa Ltd.

signalword

Danger

Hazard Classifications

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

target_organs

Nervous system

wgk_germany

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificados de análisis (COA)

Lot/Batch Number
1436996V
1436995V
1436996
1437447
1436995

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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.

Artículos

EnCat™ & Other Catalysts

Sigma-Aldrich offers 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.

Contenido relacionado

Pd EnCat™ Encapsulated Palladium Catalysts

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

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