1,6-Enynes reacted with arylboronic acids in the presence of a catalytic amount of a rhodium(I) complex under mild conditions to give (Z)-1-(1-arylethylidene)-2-vinylcyclopentanes. The regioselective addition of an arylrhodium(I) species across the carbon-carbon triple bond triggered the cyclization process. Intramolecular carborhodation onto the pendent alkene in a 5-exo mode furnished a five-membered ring. Finally, the rhodium(I) methoxide generated by β-methoxy elimination reacted with the arylboronic acid to promote the next catalytic cycle.
|Number of pages||2|
|Journal||Journal of the American Chemical Society|
|Publication status||Published - Feb 2 2005|
ASJC Scopus subject areas
- Colloid and Surface Chemistry