Resorcinarene-Functionalised Imidazolium Salts as Ligand Precursors for Palladium-Catalysed SuzukiMiyaura Cross-Couplings
Küçük Resim Yok
Tarih
2013
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley-V C H Verlag Gmbh
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Three imidazolium salts based on a rigid resorcinarene platform (13) were synthesised and used as catalyst precursors in the SuzukiMiyaura cross-coupling of aryl halides with phenylboronic acid. In these pro-carbene ligands, the heterocyclic moiety has one N atom connected to a C2 atom of a resorcinolic ring, and the other is substituted by an alkyl group (R=n-propyl, iso-propyl, benzyl). The methinic C atoms of the macrocyclic core are all substituted by a pentyl group. The best catalytic performances were obtained by using an imidazolium/Pd ratio of 1:1. The catalytic systems displayed high activities, which increased in the order R=n-propyl(1)
Açıklama
Anahtar Kelimeler
cavitands, carbenes, palladium, nitrogen heterocycles, cross-coupling
Kaynak
Chemcatchem
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
5
Sayı
5
