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(3R,4R)-2,5-Dioxo-1-m-tolyl-3,4-diyl diacetate

Acta Crystallographica Section E

Structure Reports Online

Volume 65, Part 7 (July 2009)

organic compounds

Acta Cryst. (2009). E65, o1487 [ doi:10.1107/S1600536809020637 ]

(3R,4R)-2,5-Dioxo-1-m-tolyl-3,4-diyl diacetate

S. Naz, J. Zaidi, T. Mehmood and P. G. Jones

Abstract: In the enantiomerically pure title compound, C₁₅H₁₅NO₆, the five-membered ring displays a twist conformation with the local axis through the N atom. The acetyl groups are perpendicular to the ring [dihedral angles 80.3 (1) and 89.3 (1)°] and project to opposite sides. The packing is governed by two weak C-HO interactions, forming layers of molecules parallel to the ab plane.