An iridium-catalyzed enantioselective coupling reaction of vinyl azides and vinyl benzoxazinones provided access to a new class of enantioenriched N-heterocycles, 3,4-dihydroquinolin-2(1H)-imines.
A biomass derived reusable CNO/Fe3O4 nanocatalyst for solvent-free synthesis of benzoxazinones and benzthioxazinones.
A Pd-catalyzed ring-expansion reaction of trifluoromethyl benzoxazinones with 2-methylidenetrimethylene carbonate to access 8-membered trifluoromethyl benzoxazocines is reported.
Ru(II)-catalyzed condition-controlled divergent coupling between 3-aryl-2H-benzoxazin-2-ones and benzoquinones has been realized under operationally simple conditions, affording a series of structurally stable spiropyrans and valuable arylquinones.
Reported herein is a Rh(III)-catalyzed C–H cross-coupling of benzoxazinones and unactivated styrenes to furnish vinylarene scaffolds. Mechanistic studies, gram-scale experiment and further transformations of this method were also demonstrated.