Cp∗Li as a base: application to palladium-catalyzed cross-coupling reaction of aryl-X or alkenyl-X (X=I, Br, OTf, ONf) with terminal acetylenes
作者:Minoru Uemura、Hideki Yorimitsu、Koichiro Oshima
DOI:10.1016/j.tet.2007.11.095
日期:2008.2
The reaction of aryl-X or alkenyl-X (X=I, Br, OTf, ONf) with terminal acetylenes in the presence of a catalytic amount of Pd(OAc)2 provided the alkynylated products in good yields by using Cp∗Li (Cp∗=1,2,3,4,5-pentamethylcyclopentadienyl) as a base.
在催化量的Pd(OAc)2存在下,芳基-X或烯基-X(X = I,Br,OTf,ONf)与末端乙炔的反应通过使用Cp ∗ Li( Cp *= 1,2,3,4,5-五甲基环戊二烯基)。