Chemoselective functionalization of α-carbolines at the C-2, C-3, C-4, and C-6 positions using Suzuki–Miyaura reactions
作者:Cédric Schneider、David Gueyrard、Benoît Joseph、Peter G. Goekjian
DOI:10.1016/j.tet.2009.04.032
日期:2009.7
The synthesis of 2-, 3-, 4-, and 6-substituted pyrido[2,3-b]indoles (α-carbolines) by palladium-catalyzed cross-coupling reactions from the corresponding halopyrido[2,3-b]indoles is described. A sequential and a one-pot chemoselective double Suzuki–Miyaura coupling route is presented for the synthesis of symmetrically and unsymmetrically disubstituted pyrido[2,3-b]indoles.
通过钯催化的相应卤代吡啶并[2,3- b ]吲哚的交叉偶联反应合成2-,3-,4-和6-取代的吡啶并[2,3- b ]吲哚(α-咔啉)描述。提出了顺序和一锅化学选择性双铃木-宫浦耦合路线用于合成对称和不对称的双取代吡啶并[2,3- b ]吲哚。