2,2-Dimethyl-6-nitro-3,4-dihydro-2H-benzo[b]pyran-4-one O-benzoyloxime

Article abstract of DOI:10.1107/S0108270196008475

The title compound, C₁₈H₁₆N₂O₅, has a pyran ring in a half-chair conformation fused to a benzene ring. The substituent groups at C3 and C5 are approximately coplanar with the benzopyran nucleus, with dihedral angles of 8.5 (5) and 4.2 (5)°, respectively. The benzoyloxy carbonyl group and the benzene ring of the benzopyran moiety both adopt a cis configuration.