描述了一种新型的Co(III)催化的带有内部炔烃的芳香醛与内部炔烃的氧化环化反应,可用于获得异香豆素,该反应是通过氧化,弱螯合辅助的C–H键官能化以及具有出色官能团相容性的环化级联反应实现的,具有高原子经济性,并提高效率。通过使用对环境无害且廉价的聚(乙二醇)-400(PEG-400),可以回收和再利用Co / Cu / PEG-400系统。
Regioselective synthesis of isocoumarins by ruthenium-catalyzed aerobic oxidative cyclization of aromatic acids with alkynes
作者:Ravi Kiran Chinnagolla、Masilamani Jeganmohan
DOI:10.1039/c2cc16916a
日期:——
The highly regioselective aerobic oxidative cyclization of aromatic, heteroaromatic and alkenyl acids with alkynes in the presence of catalytic amounts of [RuCl2(p-cymene)}2], AgSbF6 and Cu(OAc)2·H2O providing isocoumarin derivatives was investigated.