Palladium-Catalyzed Synthesis of Isoquinolinones via Sequential Cyclization and N-O Bond Cleavage of N-Methoxy-o-alkynylbenzamides
作者:Masafumi Ueda、Okiko Miyata、Manita Jithunsa、Naoki Aoi、Shoichi Sugita、Tetsuya Miyoshi
DOI:10.1055/s-0032-1318159
日期:——
A palladium-catalyzed controlled 6-endo-dig cyclization process has been developed for the chemoselective synthesis of isoquinolin-1-ones from N-alkoxy-o-alkynylbenzamides. The mechanism and scope of the reaction have also been investigated. Deuterium-labeling studies were used to confirm the intramolecular 1,5-hydrogen shift as a key step in the transformation.