Evidence for (π-allyl)palladium(II)(quinone) complexes in the palladium-catalyzed 1,4-diacetoxylation of conjugated dienes
1988 (English)In: Tetrahedron Letters, ISSN 0040-4039, E-ISSN 1873-3581, Vol. 29, no 18, 2243-2246 p.Article in journal (Refereed) Published
Evidence for a coordination of p-benzoquinone to palladium in [4-acetoxy-η3-(1,2,3)-cyclohexenyl]-palladium(II) complexes was provided by changes of the 1H NMR chemical shift values of the π-allyl protons and a decrease of the spin-lattice relaxation time constant for the p-benzoquinone protons.
The intermediate (π-allyl)palladium(benzoquinone) complexes previously postulated in palladium-catalyzed 1,4-oxidations of 1,3-dienes were detected by NMR spectroscopy.
Place, publisher, year, edition, pages
1988. Vol. 29, no 18, 2243-2246 p.
IdentifiersURN: urn:nbn:se:uu:diva-140734DOI: 10.1016/S0040-4039(00)86722-2OAI: oai:DiVA.org:uu-140734DiVA: diva2:384271