Crystal structure of 2-methylamino-3-nitro-4-p-tolylpyrano[3,2-c]chromen-5(4H)-one

J. Govindaraj; Y. AaminaNaaz; Jayabal Kamalraja; Paramasivam T. Perumal; A. SubbiahPandi; W. T A Harrison

doi:10.1107/S205698901500225X

Crystal structure of 2-methylamino-3-nitro-4-p-tolylpyrano[3,2-c]chromen-5(4H)-one

J. Govindaraj, Y. AaminaNaaz, Jayabal Kamalraja, Paramasivam T. Perumal, A. SubbiahPandi^*, W. T A Harrison (Editor)

^*Corresponding author for this work

Chemistry

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Abstract

In the racemic title compound, C₂₀H₁₆N₂O₅, the pyran ring adopts a shallow envelope conformation, with the stereogenic C atom displaced from the other atoms by 0.273 (2) Å. The dihedral angle between the fused-ring system and the pendant p-tolyl group is 87.62 (7)°. The molecular conformation is consolidated by an intramolecular N - H⋯O hydrogen bond, which generates an S(6) ring. In the crystal, molecules are linked by C - H⋯O interactions, resulting in [010] chains.

Original language	English
Pages (from-to)	o158-o159
Number of pages	2
Journal	Acta Crystallographica Section E: Structure Reports Online
Volume	71
Issue number	3
Early online date	7 Feb 2015
DOIs	https://doi.org/10.1107/S205698901500225X
Publication status	Published - 1 Mar 2015

Bibliographical note

The authors thank Dr Babu Varghese, SAIF, IIT, Chennai, India, for the data collection.

Keywords

Biological activity
Chromene derivatives
Crystal structure
Hydrogen bonding
Pyrano[3,2-c]chromenone

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10.1107/S205698901500225XLicence: CC BY

Crystal structure of 2-methylamino-3-nitro-4-p-tolylpyrano[3,2-c]chromen-5(4H)-one
© 2015 Govindarajet al. Licence: Creative Commons Attribution (CC-BY) https://creativecommons.org/licenses/by/4.0
Final published version, 442 KBLicence: CC BY

Cite this

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title = "Crystal structure of 2-methylamino-3-nitro-4-p-tolylpyrano[3,2-c]chromen-5(4H)-one",

abstract = "In the racemic title compound, C20H16N2O5, the pyran ring adopts a shallow envelope conformation, with the stereogenic C atom displaced from the other atoms by 0.273 (2) {\AA}. The dihedral angle between the fused-ring system and the pendant p-tolyl group is 87.62 (7)°. The molecular conformation is consolidated by an intramolecular N - H⋯O hydrogen bond, which generates an S(6) ring. In the crystal, molecules are linked by C - H⋯O interactions, resulting in [010] chains.",

keywords = "Biological activity, Chromene derivatives, Crystal structure, Hydrogen bonding, Pyrano[3,2-c]chromenone",

author = "J. Govindaraj and Y. AaminaNaaz and Jayabal Kamalraja and Perumal, {Paramasivam T.} and A. SubbiahPandi and Harrison, {W. T A}",

note = "The authors thank Dr Babu Varghese, SAIF, IIT, Chennai, India, for the data collection.",

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AU - Govindaraj, J.

AU - AaminaNaaz, Y.

AU - Kamalraja, Jayabal

AU - Perumal, Paramasivam T.

AU - SubbiahPandi, A.

A2 - Harrison, W. T A

N1 - The authors thank Dr Babu Varghese, SAIF, IIT, Chennai, India, for the data collection.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - In the racemic title compound, C20H16N2O5, the pyran ring adopts a shallow envelope conformation, with the stereogenic C atom displaced from the other atoms by 0.273 (2) Å. The dihedral angle between the fused-ring system and the pendant p-tolyl group is 87.62 (7)°. The molecular conformation is consolidated by an intramolecular N - H⋯O hydrogen bond, which generates an S(6) ring. In the crystal, molecules are linked by C - H⋯O interactions, resulting in [010] chains.

AB - In the racemic title compound, C20H16N2O5, the pyran ring adopts a shallow envelope conformation, with the stereogenic C atom displaced from the other atoms by 0.273 (2) Å. The dihedral angle between the fused-ring system and the pendant p-tolyl group is 87.62 (7)°. The molecular conformation is consolidated by an intramolecular N - H⋯O hydrogen bond, which generates an S(6) ring. In the crystal, molecules are linked by C - H⋯O interactions, resulting in [010] chains.

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KW - Crystal structure

KW - Hydrogen bonding

KW - Pyrano[3,2-c]chromenone

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SP - o158-o159

JO - Acta Crystallographica Section E: Structure Reports Online

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IS - 3

ER -

Crystal structure of 2-methylamino-3-nitro-4-p-tolylpyrano[3,2-c]chromen-5(4H)-one

Abstract

Bibliographical note

Keywords

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