Tert-Butyl 2-methyl-2-(4-nitrobenzoyl)propanoate

Document Type

Article

Publication Date

2-22-2010

Abstract

The title compound, C15H19NO5, is bent with a dihedral angle of 61.8 (2)° between the mean planes of the benzene ring and a group encompassing the ester functionality (O=C - O - C). The dihedral angle of 0.8 (2)° between the mean planes of the nitro group and the benzene ring indicates near coplanarity. In the crystal, each molecule is linked to four adjacent molecules by weak C - H⋯O hydrogen-bonding interactions. Both benzene H atoms ortho to the ketone O atom form C - H⋯O hydrogen bonds with the keto O atoms of two neighboring molecules (of the keto and ester groups, respectively), and the two other interactions involve the H atoms from a methyl group of the dimethyl residue, displaying C - H⋯O interactions with the O atoms of the nitro groups. These four interactions for each molecule lead to the formation of two-dimensional sheets with a hydro-philic inter-ior, held together by weak hydrogen-bonded interactions, and a hydro-phobic exterior composed of protruding methyl groups which interst-ack with the methyl groups in adjacent sheets.

Publication Title

Acta Crystallographica Section E: Structure Reports Online

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