Rh(III)‐Catalyzed Intramolecular Oxidative Annulation of Propargyl Amino Phenyl Benzamides to Access Pyrido/ Isoquinolino Quinoxalinones
作者:Gurram Ravi Kumar、Ravi Kumar、Manda Rajesh、B. Sridhar、Maddi Sridhar Reddy
DOI:10.1002/adsc.201900772
日期:2019.10.22
A rhodium catalyzed copper mediated double oxidativeannulation of propargylamino phenylbenzamides is developed. A quick assembly of tri, tetra and penta cyclic pyrido/isoquinolo‐quinoxilines are thus achieved from readily available linear substrates. The reaction is shown to be very general by accommodating a large variety of substrates in the transformation. A mechanism through an amide directed