[5,6]-Fused pyridocoumarins are prepared under mild conditions in excellent yields through the activation of the triple bond of 6-propargylaminocoumarins by gold nanoparticles supported on TiO2. The analogous reaction of N-propargylanilines with Au/TiO2 or Au/Al2O3 resulted in the formation of quinolines.
[5,6]-
吡啶并
香豆素是在温和的条件下通过负载在TiO 2上的
金纳米粒子活化6-炔丙基
氨基
香豆素的三键而以极好的收率制备的。N-炔丙基
苯胺与Au / TiO 2或Au / Al 2 O 3的类似反应导致
喹啉的形成。