Novel cobalt-catalyzed carbonylation of 2-aryl-2-oxazolines.
Catalytic ring-expanding carbonylation of 2-aryl-2-oxazolines is reported as a novel method for the synthesis of 4,5-dihydro-1,3-oxazin-6-ones. Various observations suggest the involvement of cobalt radicals as the catalytically active species. [reaction: see text]
Xu
Hongyu
H
Department of Chemistry, Lehigh University, 6 E. Packer Avenue, Bethlehem, PA 18015, USA.
Jia
Li
L