Heterogenization of homogeneous NHC-Pd-pyridine catalysts and investigation of their catalytic activities in Suzuki-Miyaura coupling reactions

Küçük Resim Yok

Tarih

2018

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Elsevier Science Sa

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

New generation, novel, environmentally safe polymeric heterogeneous catalysts which included catalytically active NHC-Pd-pyridine complexes were prepared by radical polymerization of NHC-Pd-pyridine complexes with Acrylamide (AAm) and 2-acrylamido-2-methylpropane sulfonic acid (AMPS) monomers in the presence of N,N'-methylenebisacrylamide (MBA) crosslinker. Structural characterization of NHCPd-pyridine complexes was conducted by using NMR, FT-IR while the structural characterization of crosslinked polymeric catalyst systems was made by using FT-IR, SEM, SEM-EDX, TEM and TGA analysis techniques. The synthesized polymer-based NHC-Pd-pyridine catalysts showed good catalytic activity for Suzuki reaction of aryl bromides with phenylboronic acid in aqueous media. They exhibited good stability and they could be reused at least five times without remarkable loss of catalytic activity. (C) 2018 Elsevier B.V. All rights reserved.

Açıklama

Anahtar Kelimeler

NHC-Pd-pyridine, Hydrogel, Polymer-based catalysts, Suzuki-Miyaura reactions, Heterogeneous catalyst

Kaynak

Journal of Organometallic Chemistry

WoS Q Değeri

Q3

Scopus Q Değeri

Q3

Cilt

872

Sayı

Künye