Synthesis of 2-Substituted Indoles and Indolines via Suzuki−Miyaura Coupling/5-<i>endo</i>-<i>trig</i> Cyclization Strategies
作者:Haruhiko Fuwa、Makoto Sasaki
DOI:10.1021/jo801985a
日期:2009.1.2
preparation of various N-(o-halophenyl)enecarbamates that served as useful precursors for subsequent 5-endo-trig Heck or 5-endo-trig aryl radical cyclizations to furnish 2-substituted indoles or indolines, respectively. Furthermore, a one-pot Suzuki−Miyaura coupling−cyclization cascade starting from enol phosphates has been developed, which was successfully applied to the efficient synthesis of an in
基于Suzuki-Miyaura偶联-环化序列,已经开发了使用无环,酰亚胺衍生的烯醇磷酸酯合成2-取代的吲哚和二氢吲哚的新策略,这些磷酸酯很容易由邻卤代苯胺制备。高度化学选择性的交叉偶联酰亚胺衍生的烯醇磷酸盐与允许的各种有效制备铃木-宫浦条件下亲核试剂硼ñ - (ö -halophenyl)enecarbamates其充当用于随后的5-有用前体内切-三角函数的Heck或5 -内-三角芳基环化分别提供2-取代的吲哚或二氢吲哚。此外,已经开发了从烯醇磷酸酯开始的一锅Suzuki-Miyaura偶联-环化级联反应,该反应已成功地用于有效合成吲哚-2-基-1 H-喹啉-2-酮KDR抑制剂。