Copper-Catalyzed Aerobic Oxidative CH and CC Functionalization of 1-[2-(Arylamino)aryl]ethanones Leading to Acridone Derivatives
作者:Jipan Yu、Haijun Yang、Yuyang Jiang、Hua Fu
DOI:10.1002/chem.201204169
日期:2013.3.25
Efficient copper‐catalyzedaerobicoxidative CH and CC functionalization of 1‐[2‐(arylamino)aryl]ethanones leading to acridones has been developed. The procedure involves cleavage of aromatic CH and acetyl CC bonds with intramolecular formation of a diarylketone bond. The protocol uses inexpensive Cu(O2CCF3)2 as catalyst, pyridine as additive, and economical and environmentally friendly oxygen
Serendipitous Synthesis of Pyridoquinazolinones <i>via</i> an Oxidative C–C Bond Cleavage
作者:Matthias Brendel、Priyanka R. Sakhare、Gaurav Dahiya、Parthasarathi Subramanian、Krishna P. Kaliappan
DOI:10.1021/acs.joc.0c00982
日期:2020.6.19
A direct one-pot copper-catalyzed oxidative C–C bond cleavage route to the synthesis of pyridoquinazolinones is described. This one-pot strategy involves a copper-catalyzed C–N coupling followed by concomitant C(sp3)–H oxidation and amidation via oxidative C–C bond cleavage under an O2 atmosphere to deliver the target molecules in high yields.
Copper-catalyzed domino sequences: a new route to pyrido-fused quinazolinones from 2′-haloacetophenones and 2-aminopyridines
作者:Phuc H. Pham、Son H. Doan、Ngan T. H. Vuong、Vu H. H. Nguyen、Phuong T. M. Ha、Nam T. S. Phan
DOI:10.1039/c8ra03744b
日期:——
A new pathway to access pyrido-fused quinazolinones via a Cu(OAc)2-catalyzed domino sequential transformation between 2′-haloacetophenones and 2-aminopyridines was demonstrated. The solvent and base exhibited a remarkable effect on the transformation, in which the combination of DMSO and NaOAc emerged as the best system. Cu(OAc)2·H2O was more active towards the reaction than numerous other catalysts
证明了通过2'-卤代苯乙酮和 2-氨基吡啶之间的 Cu(OAc) 2催化多米诺连续转化获得吡啶并稠合喹唑啉酮的新途径。溶剂和碱对转化效果显着,其中DMSO和NaOAc的组合是最佳体系。 Cu(OAc) 2 ·H 2 O 比许多其他催化剂对反应更具活性。这种方法是新的,将补充以前合成吡啶并稠合喹唑啉酮的方案。