10.1007/s40097-018-0268-3

Preparation and characterization of BF3 supported on coconut shell as a novel and effective nano-catalyst for one-pot synthesis of pyrano[2,3-d]pyrimidines

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  • Hamidreza Molaei1,
  • Bahareh Sadeghi*1,
  1. Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, IR
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Published in Issue 28-06-2018

How to Cite

Molaei, H., & Sadeghi, B. (2018). Preparation and characterization of BF3 supported on coconut shell as a novel and effective nano-catalyst for one-pot synthesis of pyrano[2,3-d]pyrimidines. Journal of Nanostructure in Chemistry, 8(2 (June 2018). https://doi.org/10.1007/s40097-018-0268-3
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Abstract

Abstract In this paper, boron trifluoride supported on coconut shell nano-particles (nano-BF 2 O-coc) was prepared from nano-crystalline coconut shell through mechanical method using ultrasonication. The resultant was utilized to obtain nano-crystalline BF 3 supported on coconut shell nano-particles (nano-BF 2 O-coc). The novel nanostructure has been characterized using Fourier transform infrared spectroscopy, transmission electron microscopy, field-emission scanning electron microscopy, and energy-dispersive X-ray spectroscopy (EDX) techniques. The catalytic activity of the solid acid catalyst has been successfully examined in a one-pot, three-component condensation reaction of barbituric acid, ethyl cyanoacetate or malononitrile, and aldehydes in refluxing ethanol to furnish pyrano[2,3- d ]pyrimidine derivatives. Graphical abstract

Keywords

  • BF3 supported on coconut,
  • Pyrano[2,3-d]pyrimidines,
  • Barbituric acid,
  • Ethyl cyanoacetate,
  • Nano-catalyst
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