Eco-Friendly Synthesis of 1,8-Dioxo-octahydroxanthenes Catalyzed by Ionic Liquid in Aqueous Media

被引：21
作者：
Fang, Dong [1 ,2 ]
Yang, Jin-Ming [1 ]
Liu, Zu-Liang [2 ]
机构：
[1] Jiangsu Prov Key Lab Coast Wetland Bioresources &, Yancheng 224002, Peoples R China
[2] Yancheng Normal Univ, Sch Chem & Chem Engn, Yancheng 224002, Peoples R China
来源：
JOURNAL OF HETEROCYCLIC CHEMISTRY | 2011年 / 48卷 / 02期
关键词：
EFFICIENT SYNTHESIS; PROMOTED SYNTHESIS; DERIVATIVES; ACID;
D O I：
10.1002/jhet.543
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A biodegradable functionalized ionic liquid 3-(N,N-dimethyldodecylammonium)propanesulfonic acid hydrogen sulfate ([DDPAR][HSO4]) was prepared and used as a Bronsted acid-surfactant-combined catalyst for the eco-friendly one-pot synthesis of 1,8-dioxo-octahydroxanthenes at 100 degrees C in water. Under these conditions, the reaction of various aromatic aldehydes with dimedone generated 1,8-dioxo-octahydroxanthenes in good yields with a simple postreaction procedure. The products could simply be separated from the catalyst/water system, and the catalyst could be reused at least six times without noticeably decreasing the catalytic activity.
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页码：468 / 472
页数：5
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