Copper-catalyzed oxidative cleavage of Passerini and Ugi adducts in basic medium yielding α-ketoamides
作者:Anirban Ghoshal、Mayur D. Ambule、Revoju Sravanthi、Mohit Taneja、Ajay Kumar Srivastava
DOI:10.1039/c9nj03533h
日期:——
oxidative cleavage of Passerini and Ugi adducts in the presence of base and copper(I) iodide is studied in detail. The oxidative cleavage yields α-ketoamides along with acids and amides from Passerini and Ugi adducts respectively. Mechanistic investigations revealed that the reaction proceeds via a radical pathway involving molecular oxygen. Control experiments with 18O-labeled Passerini adducts confirmed
Remarkable ligand effect on the palladium-catalyzed double carbonylation of aryl iodides
作者:Muneaki Iizuka、Yoshinori Kondo
DOI:10.1039/b600632a
日期:——
The use of t-Bu3P as a ligand dramatically improved the generality of the double carbonylation of aryliodides, and Mo(CO)6 was also found to be effective as a CO source in the system.