A simple modification creates a great difference: new solid-base catalyst using methylated N-substituted SBA-15 |
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Authors: | Sugino Kotaro Oya Nobuhiro Yoshie Naoko Ogura Masaru |
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Institution: | Institute of Industrial Science, The University of Tokyo, Tokyo, Japan. |
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Abstract: | A simple modification, methylation of the nitrogen-substituted mesoporous silica SBA-15, enhances the basicity of a solid-base catalyst. The methyl group donates an electron to the nitrogen atom in the silica framework. This catalyst accelerates Knoevenagel condensation using benzaldehyde and diethyl malonate, which conventional solid-base catalysts reported to date cannot do. This report demonstrates a possible new type of base catalyst using nitrogen-substituted mesoporous silica materials. |
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