Synthesis of functionalized tetrahydroisoquinolines via palladium-catalyzed 6-exo-dig carbocyclization of 2-bromo-N-propargylbenzylamines
作者:A. Nandakumar、D. Muralidharan、P.T. Perumal
DOI:10.1016/j.tetlet.2011.01.127
日期:2011.4
for tetrahydroisoquinolines has been described. The first step involves CuI catalyzed three-component coupling reaction of terminalalkyne, aldehyde and amine that provides the requisite propargyl amine. Regio- and stereoselective palladium-catalyzed 6-exo-dig carbocyclization of propargyl amine, which provides a concise access to functionalized tetrahydroisoquinolines in good yields has been developed