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4-[4-(Diethyl­amino)­phen­yl]-N-methyl-3-nitro-4H-chromen-2-amine

By J. Muthukumaran, A. Parthiban, P. Manivel, H. Surya Prakash Rao and R. Krishna

Abstract

In the title compound, C20H23N3O3, the dihydro­pyran ring adopts half-chair conformation. The chromene system makes a dihedral angle of 87.35 (5)° with the adjacent benzene ring. An intra­molecular N—H⋯O hydrogen bond generates an S(6) motif, which stabilizes the mol­ecular conformation. In the crystal, weak inter­molecular C—H⋯O hydrogen bonds contribute to the stabilization of the packing

Topics: Organic Papers
Publisher: International Union of Crystallography
OAI identifier: oai:pubmedcentral.nih.gov:3120544
Provided by: PubMed Central

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Citations

  1. (2011). organic compounds o1396 Muthukumaran et al. C20H23N3O3 Acta Cryst.
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  3. (2006). Some 4H-chromene derivatives are already reported in the literature (Muthukumaran
  4. The crystal packing of (I) showing intermolecular interactions as dashed lines. 4-[4-(Diethylamino)phenyl]-N-methyl-3-nitro-4H-chromen-2-amine Crystal data
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