A one step synthesis of functionlized N-acylanthranilamidevia Pd-catalyzed carboxamidation of o-halo substituted N-phenylamide consisting of isocyanideinsertion followed by oxidation of the imine intermediate has been achived successfully. Furthermore, at elevated temprature (160oC) the Pd-catalyzed tandem reaction afforded functionlized quinazolin-4-one in a single step without the isolation of
Synthesis of Fused Tetracyclic Compounds via Oxidative Annulation: Access to Copper-Catalyzed Indolo[1,2-<i>a</i>]quinolines and to Ruthenium-Catalyzed Isoquinolin-1[2<i>H</i>]-ones
facile double oxidative annulation of (en-3-yn-1-yl)phenylbenzamides was developed allowing us to synthetize fused tetracyclic compounds. Under copper catalysis, the reaction proceeds with high efficiency and leads to new indolo[1,2-a]quinolines via a decarbonylative double oxidative annulation. On the other hand, under ruthenium catalysis, new isoquinolin-1[2H]-ones were obtained via a double oxidative
开发了 (en-3-yn-1-yl) 苯基苯甲酰胺的简便双氧化环化,使我们能够合成稠合四环化合物。在铜催化下,反应高效进行,并通过脱羰双氧化环化反应生成新的吲哚并[1,2- a ]喹啉。另一方面,在钌催化下,通过双重氧化环化得到了新的异喹啉-1[2 H ]-酮。