Knoevenagel condensation reaction catalyzed with ionic liquid functionalized SiO2

被引：0

作者：

Li, Jia-Yun ^{[1
]}

Peng, Jia-Jian ^{[1
]}

Qiu, Hua-Yu ^{[1
]}

Jiang, Jian-Xiong ^{[1
]}

Wu, Ji-Rong ^{[1
]}

Ni, Yong ^{[1
]}

Lai, Guo-Qiao ^{[1
]}

机构：

[1] Hangzhou Teachers Coll, Minist Educ, Key Lab Organosilicon Chem & Mat Technol, Hangzhou 310012, Peoples R China

来源：

CHINESE JOURNAL OF ORGANIC CHEMISTRY | 2007年 / 27卷 / 04期

关键词：

ionic liquid; functionalized SiO2; Knoevenagel condensation;

D O I：

暂无

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The Knoevenagel condensation of a series of aromatic aldehydes with active methylene compounds proceeded smoothly in the presence of catalytic amounts of ionic liquid functionalized SiO at 100 degrees C without any additional volatile organic solvents, and the desired alkenes were obtained in good purity with excellent yields. In particular, when the Knoevenagel condensation of 2-hydroxybenzaldehyde was conducted with ethyl 2-cyanoacetate, 3-ethoxycarbonylcoumarin was obtained by simultaneous cyclization and alcoholysis of cyanide. In addition, the catalyst can be used recyclably.

引用

页码：483 / 487

页数：5

共 20 条

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