Nachweis von π → σ‐Umlagerungen bei Ligandenverdrängungsreaktionen von π‐Allyl‐π‐cyclopentadienyl‐Palladiumkomplexen
- 12 December 1973
- journal article
- research article
- Published by Wiley in Helvetica Chimica Acta
- Vol. 56 (8) , 2819-2826
- https://doi.org/10.1002/hlca.19730560816
Abstract
It has been proved by NMR. measurements at low temperatures that the ligand displacement reactions of (π‐all)Pd(π‐C5H5) and Lewis bases L yielding PdL4 proceed by a π → σ rearrangement of the allylic group as the primary step. The organic reaction product is the 1‐isomer of the corresponding allylcyclopentadiene but in the reactions of (π‐1,1,2‐Me3C3H2)Pd(π‐C5H5) with L besides the isomeric allylcyclopentadienes also 2,3‐dimethylbutadiene and cyclopentadiene are formed. The reaction mechanism will be discussed.Keywords
This publication has 7 references indexed in Scilit:
- Eine kinetische Studie über Ligandenverdrängungsreaktionen von π‐ Allyl‐π‐cyclopentadienyl‐MetallkomplexenHelvetica Chimica Acta, 1973
- Transition Metal Promoted Reactions of Unsaturated Hydrocarbons. I. Mechanism of 1,3-Diene Insertion into Allyl-Palladium BondsJournal of the American Chemical Society, 1972
- π-Allylnickel Intermediates in Organic SynthesisPublished by Elsevier ,1970
- Reactions involving organometallic compounds of rhodium, iridium, palladium and platinum: A survey of NMR studiesInorganica Chimica Acta Reviews, 1969
- Synthesis of β‐alkyl and β‐aryl π‐allylic palladium halide complexes and its mechanistic aspectsRecueil des Travaux Chimiques des Pays-Bas, 1969
- Kinetische Untersuchungen über Substitutionsreaktionen an Metallkomplexen. 11. Mitteilung [1]. Die Bildung von Tetrakis(triäthylphosphit)nickel(0) aus Nickelocen — eine Reaktion dritter OrdnungHelvetica Chimica Acta, 1969
- Hydrogen migration in cyclopentadienesTetrahedron, 1965