Ruthenium-Catalyzed Coupling of Oxabenzonorbornadienes with Alkynes Bearing a Propargylic Oxygen Atom: Access to Stereodefined Benzonorcaradienes
作者:Alphonse Tenaglia、Sylvain Marc、Laurent Giordano、Innocenzo De Riggi
DOI:10.1002/anie.201104589
日期:2011.9.19
Stereodefined: The title reaction provides an atom‐economic route to benzonorcaradienes. The diastereoselectivity of the coupling relies upon the structure of the alkene; unsubstituted bicyclic alkenes afforded exclusively exo‐benzonorcaradienes (see scheme) whereas the bicyclic alkenes with substituents at the bridgehead positions resulted in endo‐benzonorcaradienes.