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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 32, 2002 - Issue 22
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Original Articles

THE KNOEVENAGEL CONDENSATION REACTION OF AROMATIC ALDEHYDES WITH MALONONITRILE BY GRINDING IN THE ABSENCE OF SOLVENTS AND CATALYSTS

Zhongjiao Ren Department of Chemistry, Shanghai University, Shanghai, 200436, P.R. China
,
Weigud Cao State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P.R. China
&
Weiqi Tong Department of Chemistry, Shanghai University, Shanghai, 200436, P.R. China
Pages 3475-3479 | Received 10 Jul 2001, Published online: 22 May 2009
 
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ABSTRACT

An improved Knoevenagel condensation reaction of aldehydes and malononitrile can be achieved by grinding at room temperature in the absence of solvents and catalysts. This process is simple, efficient, economical, and environmentally benign. Compared to reactions carried out by microwave irradiation, this procedure is completely free from organic solvents during both the reaction and separation of the product.

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