A Gallium-Catalyzed Cycloisomerization/Friedel−Crafts Tandem
作者:Hui-Jing Li、Régis Guillot、Vincent Gandon
DOI:10.1021/jo101709n
日期:2010.12.17
specificity of gallium has been exploited for the synthesis of valuable polycycliccompounds that would be very difficult to prepare otherwise. For instance, tetrahydroisoquinolines and tetrahydrobenzoazepines have been obtained by selective 6-exo-dig or 7-endo-dig cyclization of N-tethered 1,6-arenynes. DFT calculations were carried out to shed light on the mechanism and provide a rationale for this regiodivergency