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. 2012 Oct 1;68(Pt 10):o2947.
doi: 10.1107/S1600536812039153. Epub 2012 Sep 19.

4-Acetyl-1H-pyrrole-2-carbaldehyde

Tao Sun  1 , Jia-Wei Xie, Ren-Ying Zhao, Ai-Guo Zhu, Yan-Qing Ge
Affiliations

4-Acetyl-1H-pyrrole-2-carbaldehyde

Tao Sun et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title compound, C(7)H(7)NO(2), was synthesized via a one-pot Vilsmeier-Haack and subsequent Friedel-Crafts reaction. The pyrazole ring makes dihedral angles of 4.50 (9) and 2.06 (8)°, respectively, with the aldehyde and acetyl groups. In the crystal, classical N-H⋯O hydrogen bonds and weak C-H⋯O inter-actions assemble the mol-ecules into a chain along the b axis.

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Figures

Fig. 1.
Fig. 1.
The molecular structure of compound, showing displacement ellipsoids drawn at the 30% probability level.
Fig. 2.
Fig. 2.
The one-dimensional infinite chain structure, which is formed by intermolecular N—H···O hydrogen bonding and weak C—H···O interactions.
See this image and copyright information in PMC

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