Ruthenium‐Catalyzed Synthesis of Functionalized Dienes from Propargylic Esters: Formal Cross‐Coupling of Two Carbenes
作者:Chloé Vovard‐Le Bray、Sylvie Dérien、Pierre H. Dixneuf
DOI:10.1002/anie.200805031
日期:2009.2.9
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.
卡宾交叉偶联:在[RuCl(cod)Cp *]催化剂存在下,炔丙酸酯与重氮烷的偶联导致形成具有高立体选择性的官能化共轭二烯。反应涉及由钌催化的炔丙基酯重排产生的乙烯基卡宾片段与重氮烷烃卡宾的交叉偶联。