Published in
Royal Society of Chemistry, Catalysis Science & Technology, 9(2), p. 1940, 2012
DOI: 10.1039/c2cy20227a
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A rapid and eco-friendly synthesis of novel and known benzopyrazines using silica tungstic acid (STA) as a new and recyclable catalyst
Journal article published in 1940 by
Saeed Khodabakhshi 
,
Bahador Karami
,
Bahador Karami
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Abstract
A novel silica tungstic acid (STA) as a green catalyst has been prepared and employed for the solvent-free synthesis of novel benzopyrazines. Catalyst loadings as low as 2 mol% could be used leading to high yields of pure products. The STA was characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD), inductively coupled plasma (ICP-OES) and Fourier transform infrared spectroscopy (FT-IR).