<p>A convenient green protocol for oxidative esterification of arylaldehydes over Pd NPs decorated polyplex encapsulated Fe3O4 microspheres<br></p>


Veisi H., Ebrahimi Z., Karmakar B., Tamoradi T., Öztürk T.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, vol.200, pp.132-138, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 200
  • Publication Date: 2022
  • Doi Number: 10.1016/j.ijbiomac.2021.12.152
  • Journal Name: INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, EMBASE, Food Science & Technology Abstracts, INSPEC, MEDLINE, Veterinary Science Database
  • Page Numbers: pp.132-138
  • Keywords: Pd NP, Magnetic, Oxidative esterification, IRON-OXIDE NANOPARTICLES, CATALYTIC-REDUCTION, RECYCLABLE NANOCATALYST, SILVER NANOPARTICLES, ALDEHYDES, EXTRACT, EFFICIENT, ALCOHOLS, 4-NITROPHENOL, ESTERS
  • Istanbul Technical University Affiliated: Yes

Abstract

A mild, competent and eco-friendly protocol has been developed for oxidative esterification of various aldehydes over a post-synthetically modified and Pd fabricated chitosan-starch dual functionalized Fe3O4 microspheres as a magnetically isolable heterogeneous and biocompatible nanocatalyst. Molecular O-2 was used as an oxidant in the reaction. A series of aldehydes was directly esterified with MeOH in excellent yields without any pre-activation and involvement of harsh chemicals/conditions. Structural features of the catalyst were assessed through FT-IR, FE-SEM, TEM, EDX, molecular mapping, XRD, VSM and ICP-OES techniques. Due to magnetic core, the catalyst was easily isolated using an external magnet and reused for 8 times in succession, retaining its morphology and catalytic activity.