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Synfacts 2010(6): 0723-0723
DOI: 10.1055/s-0029-1219894
DOI: 10.1055/s-0029-1219894
Polymer-Supported Synthesis
© Georg Thieme Verlag
Stuttgart ˙ New York
N-Alkylimidazole-Decorated Dendritic Catalysts for Baylis-Hillman Reaction
K. Goren, M. Portnoy*
Tel Aviv University, Israel
Weitere Informationen
Publikationsverlauf
Publikationsdatum:
20. Mai 2010 (online)
![](https://www.thieme-connect.de/media/synfacts/201006/lookinside/thumbnails/10.1055-s-0029-1219894-1.jpg)
Significance
Polymer-supported dendritic catalysts [Gn(E-Im), Gn(A-Im), Gn(T-Im)] were prepared from Wang resins and N-alkylated imidazoles (1-3), and applied to the Baylis-Hillman reaction. Thus, the Baylis-Hillman reaction of methyl vinyl ketone and 4-nitrobenzaldehyde was performed with the catalytic resin G2(A-Im) (0.1 mmol of N-alkylated imidazole units) in DMF-H2O (9:1, v/v) at room temperature for 4 h to afford adduct 4 in 91% yield.