Facile synthesis of 2,5,7-trisubstituted oxazolo[5,4-d]pyrimidines via copper-catalyzed intramolecular C–O bond formation

• DOI: 10.1016/j.tet.2012.03.080
• Publication Date: 2012-03-27T21:04:17Z
• Authors: Dan Xu; Li-Ping Sun; Qi-Dong You
• Keywords: Amide

AbstractKey step is an intramolecular C—O cross‐coupling of ortho chloropyrimidine amide via a copper(I)‐mediated cyclization.