Laboratoire “Catalyse et Organométalliques”, Institut Sciences Chimiques de Rennes, UMR 6226, CNRS‐Université de Rennes, Campus de Beaulieu, 35042 Rennes (France), Fax: (+33)?2‐2323‐6939
Abstract:
Cross‐coupling carbenes : The coupling of a propargylic ester with a diazoalkane in the presence of RuCl(cod)Cp*] catalyst leads to the formation of functionalized conjugated dienes with high stereoselectivity. The reaction involves the cross‐coupling of a vinylcarbene fragment, arising from a ruthenium‐catalyzed propargylic ester rearrangement, with a diazoalkane carbene.
