Rhodium(<scp>iii</scp>)-catalyzed intramolecular annulation through C–H activation: concise synthesis of rosettacin and oxypalmatime
作者:Liangliang Song、Guilong Tian、Yi He、Erik V. Van der Eycken
DOI:10.1039/c7cc06860c
日期:——
A flexible and efficient rhodium(III)-catalyzed intramolecular annulation of benzamides bearing tethered alkynes for the synthesis of indolizinones and quinolizinones is reported. This reaction shows a broad substrate scope and excellent functional-group tolerance, including different kinds of heterocyclic substrates, such as furan, thiophene, pyrrole, benzofuran, benzothiophene, indole and isonicotinamide