4.6 Article

Iron-Oxide-Supported Ultrasmall ZnO Nanoparticles: Applications for Transesterification, Amidation, and O-Acylation Reactions

Journal

ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 5, Issue 4, Pages 3314-3320

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.6b03167

Keywords

Maghemite-ZnO nanoparticles; Magnetic cleansing Transesterification; Acylation; Sustainable protocol

Funding

  1. BCUD, Savitribai Phule Pune University, Pune
  2. Ministry of Education, Youth and Sports of the Czech Republic [LM2015073, L01305]

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An efficient maghemite-ZnO nanocatalyst has been synthesized via a simple coprecipitation method, where ZnO nanoparticles are uniformly decorated on the maghemite core and characterized by XRD, SEM-EDS, ICP-AES, XPS, TEM, HRTEM, and Mossbauer spectroscopy; maghemite nanoparticles are in the typical size range 10-30 nm with ultrasmall (3-5 nm) ZnO nanoparticles. A competent and benign protocol is reported for various organic transformations, namely, transesterification, amidation, and O-acylation reaction in good to excellent yields (75-97%) using magnetically separable and reusable maghemite ZnO nanocatalyst.

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