Rhodium-catalyzed C–H activation and conjugate addition under mild conditions
作者:Luo Yang、Camille A. Correia、Chao-Jun Li
DOI:10.1039/c1ob05993a
日期:——
An efficient rhodiumIII-catalyzed CâH activation and subsequent conjugate addition was achieved under mild conditions. The reaction utilized inert arenes to replace stoichiometric organometallic reagents and can tolerate various functional groups as well as air and water.
An oxidative annulation of 2-arylindazoles with cyclic enoneshas was developed using Rh(III)/Cu(OAc)2 catalytic system for the first time to produce 3,4-dihydroindazolo[2,3-f]phenanthridin-1(2H)-one derivatives in good yields with high selectivity. When AgSbF6 was used instead of Cu(OAc)2, the corresponding uncyclized products, 3-(2-(2H-indazol-2-yl)phenyl)cyclohexan-1-one scaffolds were formed exclusively
首次使用Rh(III)/Cu(OAc) 2催化体系开发了2-芳基吲唑与环状烯酮的氧化环化反应,制备了3,4-二氢吲唑并[2,3 - f ]菲啶-1(2 H ) -一种具有高选择性的高产率衍生物。当使用 AgSbF 6代替 Cu(OAc) 2 时,专门形成了相应的未环化产物 3-(2-(2H-indazol-2-yl)phenyl)cyclohexan-1-one 支架。