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Synfacts 2007(5): 0561-0561
DOI: 10.1055/s-2007-968488
DOI: 10.1055/s-2007-968488
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart · New York
Poly(4-vinylpyridine)-Supported Ru-Salen Catalyst for the Olefination of Aldehydes
S. Syukri, W. Sun, F. E. Kühn*
TU München, Garching, Germany and Instituto TechnolÓgico e Nuclear, SacavÉm, Portugal
Further Information
Publication History
Publication Date:
24 April 2007 (online)
Significance
A Ru-salen catalyst anchored on poly(4-vinylpyridine) for the olefination of aldehydes was developed. The poly(4-vinylpyridine)-supported Ru-salen catalyst (P4VP) was prepared from poly(4-vinylpyridine) and [Ru] 1. The olefination of 4-nitrobenzaldehyde with diazoethylacetate (EDA) was carried out with P4VP and PPh3 to give ethyl 4-nitrocinnamate in 96% yield (cis/trans = 1:99). The olefination of various aldehydes with EDA by using P4VP was also demonstrated (6 examples, 12-96% yield).