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

被引：50
|
作者：
Khodabakhshi, Saeed [1 ]
Karami, Bahador [1 ]
机构：
[1] Islamic Azad Univ, Gachsaran Branch, Dept Chem, Gachsaran, Iran
来源：
CATALYSIS SCIENCE & TECHNOLOGY | 2012年 / 2卷 / 09期
关键词：
QUINOXALINE DERIVATIVES; SULFURIC-ACID; ROOM-TEMPERATURE; EFFICIENT; NANOPARTICLES; CONDENSATION;
D O I：
10.1039/c2cy20227a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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).
引用
收藏
页码：1940 / 1944
页数：5
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