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Issue 9, 2012
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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

Saeed Khodabakhshi*a  and  Bahador Karamib 
Author affiliations

* Corresponding authors

a Young Researchers Club, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran
E-mail: saeidkhm@yahoo.com
Fax: +98 7423332003
Tel: +98 7423332033

b Department of Chemistry, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran
E-mail: karamivk@yahoo.com
Fax: +98 7423332003
Tel: +98 7423332033

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).

Graphical abstract: A rapid and eco-friendly synthesis of novel and known benzopyrazines using silica tungstic acid (STA) as a new and recyclable catalyst

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Publication details

The article was received on 18 Jan 2012, accepted on 30 Apr 2012 and first published on 31 May 2012


Article type: Paper
DOI: 10.1039/C2CY20227A
Citation: Catal. Sci. Technol., 2012,2, 1940-1944
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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

    S. Khodabakhshi and B. Karami, Catal. Sci. Technol., 2012, 2, 1940
    DOI: 10.1039/C2CY20227A

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