Repozytorium
Wyszukaj
Kolekcje
Inne
The effect of Al.2O3 and ionic liquids in palladium catalyzed arylation of cyclohexene. Interaction of Hg(0) with immobilized palladium.
Autorzy
Rok wydania
2016
Czasopismo
Journal of Molecular Catalysis A-Chemical
Numer woluminu
411
Strony
188-195
DOI
10.1016/j.molcata.2015.10.029
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Three-component systems containing Pd(OAc)2, Al2O3, and an IL (IL=ionic liquid) were applied in the Heck arylation of cyclohexene. The highest productivity and selectivity to 4-phenylcyclohexene was noted in reaction catalyzed by Pd/Al2O3in the presence of a small amount of an IL, dimethyldidodecylammonium lactate (C). The addition of Al2O3alone to the reaction catalyzed by soluble precursors, PdCl2(PhCN)2or Pd(OAc)2and IL, remarkably increased conversion to 4-phenylcyclohexene. Hg(0) inhibited the reaction catalyzed by Pd/Al2O3by formation of Pd-Hg amalgam immobilized on Al2O3. SEM/EDX studies of Pd/Al2O3performed after treatment with Hg(0) showed that the IL modified the surface properties of Pd/Al2O3.
Słowa kluczowe
palladium, heck coupling, Cyclohexene, ionic liquids, Hg(0), TEM, SEM
Adres publiczny
http://dx.doi.org/10.1016/j.molcata.2015.10.029
Strona internetowa wydawcy
Podobne publikacje
Palladium catalyzed Heck arylation of 2,3-dihydrofuran—effect of the palladium precursor.
Morel Adam, Trzeciak Anna M., Pernak Juliusz
Selective Heck arylation of cyclohexene with homogeneous and heterogeneous palladium catalysts.
Mieczyńska Ewa, Trzeciak Anna M.