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205737

Sigma-Aldrich

Palladium on calcium carbonate

greener alternative

extent of labeling: 5 wt. % loading, poisoned with lead

Synonym(s):

Pd

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About This Item

Linear Formula:
Pd
MDL number:
UNSPSC Code:
12141733
eCl@ss:
38191001
PubChem Substance ID:
NACRES:
NA.22

form

powder

autoignition temp.

>1120 °F

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

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

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extent of labeling

5 wt. % loading

greener alternative category

SMILES string

[Ca++].[Pd++].[O-]C([O-])=O.[O-]C([O-])=O

InChI

1S/2CH2O3.Ca.Pd/c2*2-1(3)4;;/h2*(H2,2,3,4);;/q;;2*+2/p-4

InChI key

XGLHAVVVUOEGIO-UHFFFAOYSA-J

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General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

Application

Catalyst for:
  • Aqueous Heck coupling and hydroarylation
  • Reduction reactions
  • Hydrogenation reactions
Palladium on calcium carbonate (Pd/CaCO3) can be used as a green catalyst for a variety of applications such as:
  • formation of an efficient catalytic system for Heck coupling reaction and hydroarylation reaction
  • synthesis of Lindlar catalyst for selective hydrogenation of alkynes
  • a catalytic reservoir in Miyaura-Suzuki cross-coupling reactions
  • Stille cross-coupling reactions

Pictograms

Health hazardEnvironment

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Chronic 1 - Lact. - Repr. 1A - STOT RE 2

Target Organs

Central nervous system,Blood,Immune system,Kidney

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Chun Wong Aaron Chan et al.
Nature communications, 5, 5787-5787 (2014-12-20)
Lindlar catalysts comprising of palladium/calcium carbonate modified with lead acetate and quinoline are widely employed industrially for the partial hydrogenation of alkynes. However, their use is restricted, particularly for food, cosmetic and drug manufacture, due to the extremely toxic nature

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