期刊
POLYCYCLIC AROMATIC COMPOUNDS
卷 42, 期 6, 页码 3377-3390出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10406638.2020.1866036
关键词
Catalyst; hetropolyacid; ionic liquid; xanthenediones
资金
- Islamic Azad University, Central Tehran Branch
In this study, a Keggin-type phosphotungstate-based ionic liquid was successfully synthesized and used as an efficient catalyst for the synthesis of xanthenediones. The synthetic method showed convenient work-up procedure, mild reaction conditions, high yields, and the ionic liquid could be recycled efficiently.
In this study, Keggin-type phosphotungstate-based ionic liquid [HOOCC5H4NH](3)PW12O40 was synthetized using nicotinic acid and H3PW12O40 as precursors and characterized via FT-IR, H-1 NMR, C-13 NMR, XRD, TGA, and DTG analyses. Then, [HOOCC5H4NH](3)PW12O40 was utilized as a highly effective and eco-friendly catalyst for the synthesis of xanthenediones through two-component reaction of aldehydes and dimedone under solvent-free conditions at 120 degrees C. The convenient work-up procedure, mild reaction conditions, high yields, and practically short reaction times were the specific merits of the synthetic method. In addition, the designed ionic liquid was recycled efficiently and reused four times without further decrease in the catalytic ability.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据