A cationic gold(I)/PPh3 complex catalyzes cycloisomerizations of bicyclic N-alkenyl alkynylamides leading to tricyclic 2-pyridone derivatives at room temperature in good yields. The bicyclic N-alkenyl alkynylamides are readily prepared starting from commercially available 2-substituted cycloalkanones.
                                    一种阳离子
金(I)/PPh3复合物在室温下催化双环N-烯烃炔基酰胺的环内异构化反应,得到了
三环2-
吡啶酮衍
生物,产率良好。双环N-烯烃炔基酰胺可从商业上可得的2-取代环状酮便利制备。