Rhodium(III)-Catalyzed Vinylic C–H Activation: A Direct Route toward Pyridinium Salts
作者:Ching-Zong Luo、Jayachandran Jayakumar、Parthasarathy Gandeepan、Yun-Ching Wu、Chien-Hong Cheng
DOI:10.1021/acs.orglett.5b00028
日期:2015.2.20
A synthetic method for highly substituted pyridinium salts from the multicomponent reaction of vinyl ketones/aldehydes, amines, and alkynes using a rhodium catalyst is demonstrated. The catalytic reaction proceeds via an in situ generated imine-assisted RhIII-catalyzed vinylic C–H activation.
证明了使用
铑催化剂由
乙烯基酮/醛,胺和
炔烃的多组分反应合成高度取代的
吡啶鎓盐的方法。催化反应通过原位生成的
亚胺辅助Rh III催化的
乙烯基C–H活化而进行。