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Incorporation of PdCl2P2 complexes in Ni-MOF for catalyzing Heck arylation of functionalized olefins.
Autorzy
Rok wydania
2019
Czasopismo
European Journal of Inorganic Chemistry
Strony
4282-4288
DOI
10.1002/ejic.201900618
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Two palladium complexes of a PdCl2P2 type with P = tri(1‐piperidinyl)phosphine (Pd‐1) and triphenylphosphine (Pd‐2) were successfully immobilized on [Ni8(OH)4(OH2)2(L)6]n (Ni‐MOF) material [L=4,4′‐(benzene‐1,4‐diyldiethyne‐2,1‐diyl)bis(1‐H‐pyrazole)] to form Pd@Ni‐MOF composites. The presence of big octahedral cavities in the Ni‐MOF structure (2.4 nm) enabled incorporation of PdCl2P2 molecules inside the Ni‐MOF, as confirmed by physicochemical measurements and computer simulation. The Pd@Ni‐MOF composites catalyzed arylation of estragole by iodobenzene with an efficiency higher than that for the corresponding PdCl2P2 compounds without MOF. Arylation of eugenol by PhB(OH)2 unexpectedly resulted in the formation of ether as the main product. This was explained by the dominating activity of the Cu@MOF catalyst, formed in situ under the reaction conditions.
Adres publiczny
http://dx.doi.org/10.1002/ejic.201900618
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