Asymmetric hydroalkynylation of norbornadienes promoted by chiral iridium catalysts.
Across bonds: The first successful iridium-catalyzed asymmetric hydroalkynylation of nonpolar alkenes with good to excellent enantioselectivity is described (see scheme; cod = 1,5-cyclooctadiene, DCE = 1,2-dichloroethane). This catalytic system exhibits good functional group compatibility as NH(2), OH, Br, F, and SiMe(3) groups remain intact during the reaction.
SourceAngewandte Chemie (International ed. in English) 51:31 2012 Jul 27 pg 7821-4
Pub Type(s)Journal Article
Research Support, Non-U.S. Gov't