Exceptionally high turnover frequencies recorded for a new chitosan-based palladium(II) catalyst

Talat Baran*, Idris Sargin, Ayfer Menteş, Murat Kaya

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)

Abstract

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 × 10-3% mol) in a short reaction time (5 min). The catalyst also showed a better recyclability.

Original languageEnglish
Pages (from-to)12-20
Number of pages9
JournalApplied Catalysis A: General
Volume523
DOIs
Publication statusPublished - 5 Aug 2016
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V. All rights reserved.

Keywords

  • Cross-linking
  • Pyridil
  • Suzuki coupling
  • TOF
  • TON

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