Exceptionally high turnover frequencies recorded for a new chitosan-based palladium(II) catalyst
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Dosyalar
Tarih
2016
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
To be industrially feasible, and applicable in synthesis of fine chemicals, a catalyst has to possess high turnover number (TON) and turnover frequency (TOF). In this study, a new cross-linked chitosan derivative was synthesized by using 2,2'-pyridil as a cross-linking agent. 2,2'-Pyridil cross-linked chitosan was used to as a support material for palladium catalyst. Chitosan-pyridil-based Pd(II) catalyst was tested in the microwave-assisted synthesis of biaryls via Suzuki coupling reactions. The catalyst yielded remarkable TONs of up to 20,000 and TOFs of up to 240,964 by using very low catalyst loading (5 x 10(-3)% mol) in a short reaction time (5 min). The catalyst also showed a better recyclability. (C) 2016 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Suzuki Coupling, Pyridil, Cross-Linking, TON, TOF
Kaynak
Applied Catalysis A-General
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
523
