Synfacts 2009(9): 1053-1053  
DOI: 10.1055/s-0029-1217652
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart ˙ New York

MonoSil Microreactor for Knoevenagel Reaction and Transesterification

Contributor(s): Yasuhiro Uozumi, Yoichi M. A. Yamada
A. El Kadib, R. Chimenton, A. Sachse, F. Fajula, A. Galarneau, B. Coq*
Institut Charles Gerhardt Montpellier, France
Further Information

Publication History

Publication Date:
21 August 2009 (online)

Significance

Functionalized monolithic mesoporous silicas, NH2-MonoSil and HSO3-MonoSil, were applied to the microreactor matrices for Knoevenagel reaction and transesterification, ­respectively. Thus, the Knoevenagel reaction of benzaldehyde with ethyl cyanoacetate in the NH2-MonoSil-installed microreactor with 0.5 mL/min of flow rate gave ethyl α-cyanocinnamate in 84% for 28 h on stream (TON = 2280). The transesterification of triacetin with methanol was performed in the HSO3-MonoSil-installed microreactor at 333 K to afford glycerol in 79% yield.