Amorphous silica-alumina-supported amines (SA-NR2) were found to be excellent heterogeneous catalysts for a variety of carbon-carbon bond-forming reactions, such as cyano-O-ethoxycarbonylation, Michael reaction, and nitro-aldol reaction. These reactions were hard to proceed either with amines alone or on the SA alone. Solid-state 13C MAS NMR analysis revealed the acid-base interaction of the H+ site and amine group on the SA-NR2 surface, which makes an acid-base dual activation mechanism possible for carbon-carbon bond-forming reactions. Copyright © 2007 American Chemical Society.
CITATION STYLE
Motokura, K., Tada, M., & Iwasawa, Y. (2007). Heterogeneous organic base-catalyzed reactions enhanced by acid supports. Journal of the American Chemical Society, 129(31), 9540–9541. https://doi.org/10.1021/ja0704333
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