2-[3-(2-Acetoxyphenyl)quinoxa-lin-2-yl]phenyl acetate.

The title compound, C24H18N2O4, crystallizes as a syn-conformer, with dihedral angles between the quinoxaline moiety and the acet-oxy-substituted benzene rings of 53.46 (3)° and 54.78 (3)°. In the crystal, the mol-ecules form chains along [100] via C-H⋯O inter-actions.

Highly efficient vinylaromatics generation via iron-catalyzed sp3 C-H bond functionalization CDC reaction: a novel approach to preparing substituted benzo[α]phenazines.

An iron-catalyzed benzylic vinylation was developed to transfer the carbon atom in the N,N-dimethyl moiety of N,N-dimethylacetamide (or N,N-dimethylformamide) to 2-methyl azaarenes to generate 2-vinyl azaarenes.