Next Article in Journal
Ultrafast Electronic Deactivation Dynamics of Xanthosine Monophosphate
Previous Article in Journal
Preparative Scale Resolution of Enantiomers Enables Accelerated Drug Discovery and Development
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Molecules 2017, 22(1), 150; doi:10.3390/molecules22010150

O-Carboxymethyl Chitosan Supported Heterogeneous Palladium and Ni Catalysts for Heck Reaction

1,2,* and 1,*
1
Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, China
2
Shandong YuHong New Pigment Co., Ltd., Dezhou 253000, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 23 December 2016 / Revised: 11 January 2017 / Accepted: 12 January 2017 / Published: 18 January 2017
View Full-Text   |   Download PDF [15371 KB, uploaded 18 January 2017]   |  

Abstract

Two polymer catalysts (Pd-OCMCS and Ni-OCMCS) with good reusability were synthesized by coordinating Pd and Ni onto O-carboxymethyl chitosan (OCMCS). The chemical structure and thermal stability of prepared catalysts were determined by Fourier transform infrared (FT-IR) spectra, Energy Dispersive Spectrometer (EDS)analysis, X-ray diffraction (XRD), and thermogravimetric analyzer (TG-DTG), and the analysis results showed that the Pd and Ni ions coordinated onto the OCMCS and formed a ligand with the –COOH group, amino groups, and –OH group on the OCMCS, and the EDS and Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) analysis results showed that the loading amounts of Pd and Ni were approximately 8.3% and 8.9%, respectively. In the Heck reaction between aryl halides and n-butyl acrylate catalyzed by the prepared catalyst, the test results showed that the product yield followed the order of aryl iodide > aryl bromide > aryl chloride. Additionally, the product yield for the aryl iodide and aryl bromide could reach up to 99% and 96%, respectively. Moreover, the electron-withdrawing and electron-donating property of the group on the aryl also affected the product yield, and the product yield for aryl halides with electron-withdrawing group p-NO2, p-CH3CO, and p-CHO was higher than that with electron-donating group p-CH3. View Full-Text
Keywords: O-carboxymethyl chitosan; biopolymer-supported catalyst; Pd-OCMCS; Ni-OCMCS; heck reaction O-carboxymethyl chitosan; biopolymer-supported catalyst; Pd-OCMCS; Ni-OCMCS; heck reaction
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Lv, D.; Zhang, M. O-Carboxymethyl Chitosan Supported Heterogeneous Palladium and Ni Catalysts for Heck Reaction. Molecules 2017, 22, 150.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]

Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top