Neha Patil (Editor)

Allylpalladium chloride dimer

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Formula
  
C6H10Cl2Pd2

Molar mass
  
365.85 g/mol

Allylpalladium chloride dimer httpsuploadwikimediaorgwikipediacommonsthu

Related compounds
  
(η-allyl)(η5 – cyclopentadienyl)palladium(II) di-μ-chlorobis(crotyl)dipalladium

Appearance
  
Pale yellow, crystalline solid

Allylpalladium(II) chloride dimer is a chemical compound with the formula (η3- C3H5)2Pd2Cl2. This yellow air-stable compound is an important catalyst used in organic synthesis. It is one of the most widely used transition metal allyl complexes.

Synthesis and reactions

The compound is prepared by purging carbon monoxide through a methanolic aqueous solution of palladium(II) chloride, sodium chloride, and allyl chloride.

2Na2PdCl4 + 2 CH2=CHCH2Cl + 2 CO + 2 H2O → (C3H5)2Pd2Cl2 + 4 NaCl + 2 CO2 + 4 HCl

APC reacts with sources of cyclopentadienyl anion to give the corresponding 18e complex cyclopentadienyl allyl palladium:

(C3H5)2Pd2Cl2 + 2 NaC5H5 → 2 Pd(η3-C3H5)(η5-C5H5) + 2 NaCl

References

Allylpalladium chloride dimer Wikipedia
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