Synfacts 2010(1): 0070-0070  
DOI: 10.1055/s-0029-1218503
Metal-Catalyzed Asymmetric Synthesis and Stereoselective Reactions
© Georg Thieme Verlag Stuttgart ˙ New York

Rhodium-Catalyzed Conjugate Alkynylation with TMS-acetylene

Contributor(s): Hisashi Yamamoto, Pingfan Li
E. Fillion*, A. K. Zorzitto
University of Waterloo, Canada
Further Information

Publication History

Publication Date:
21 December 2009 (online)

Significance

The authors utilized TMS-acetylene for the rhodium/diphosphine complex catalyzed conjugate addition of 5-benzylidene Meldrum’s acids, which are believed to be highly electrophilic acceptors. Similar reactions were previously ­reported to proceed with phenylacetylene or ­(triisopropylsilyl)acetylene as nucleophiles.