One-Pot Synthesis of 1-(Trifluoromethyl)-4-fluoro-1,2-dihydroisoquinolines and 4,4-Difluoro-1,2,3,4-tetrahydroisoquinolines
作者:Qilun Liu、Yichen Wu、Pinhong Chen、Guosheng Liu
DOI:10.1021/ol403059z
日期:2013.12.20
A cascade approach to 1-(trifluoromethyl)-4-fluoro-1,2-dihydroisoquinolines and 4,4-difluorotetrahydroisoquinolines has been developed. The procedure involves a silver-catalyzedintramolecularaminofluorination of alkyne. This one-pot reaction provides an efficient way to synthesize various fluorinated isoquinolines.
Mechanistic Investigation on the Silver-Catalyzed Oxidative Intramolecular Aminofluorination of Alkynes
作者:Tao Xu、Yichen Wu、Zheliang Yuan、Hairong Guan、Guosheng Liu
DOI:10.1021/acs.organomet.6b00054
日期:2016.5.23
In this work, a mechanistic study of silver-catalyzed oxidative aminofluorination of alkynyl-imine has been carried out. Kinetic data support a reaction pathway involving fast amination of alkyne to mesoionic carbene silver complexes (MIC)(n)Ag(I) (n = 1 or 2). The rate-determining step of the reaction is the fluorination of the Ag species supported by a single MIC.