A new, selective protocol for the synthesis of 1-substituted 2-(trifluoromethyl)indoles has been developed by palladium-catalyzed double amination reaction of 2-chloro-1-(2-halophenyl)-3,3,3-trifluoroprop-1-enes with primary amines. This route allows the formation of two C-N bonds in one pot from the reaction between 2-chloro-1-(2-halophenyl)-3,3,3-trifluoroprop-1-enes and primary amines using the
通过钯催化2-氯-1-(2-卤代苯基)-3,3,3-三氟丙-1的双胺化反应,开发了一种新的选择性合成1-取代的2-(三氟甲基)吲哚的方案。 -与伯胺的烯。该路线允许使用Pd 2(dba)3在2-氯-1-(2-卤代苯基)-3,3,3-三氟丙-1-烯与伯胺之间的反应中在一个罐中形成两个CN键/ L4 / t -BuONa系统。 钯-双胺-2-氯-1-(2-卤代苯基)-3,3,3-三氟丙-1-烯-2-(三氟甲基)吲哚
A new palladium-catalyzed C-H amination of aryl enamines for the synthesis of trifluoromethylated indoles is established. The attractive features of this transformation are the use of atom-economical O2 as the oxidant and easily prepared enamines as substrates. A variety of pharmaceutically important 2-trifluoromethyl indoles can be targeted in moderate to good yields with good functional compatibility