rac-Dimethyl 2-(tert-butylamino)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3,4-dicarboxylate

rac-Dimethyl 2-(tert-butylamino)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3,4-dicarboxylate

The title compound, C20H21NO7, is asymmetric with a chiral centre located in the pyran ring and crystallizes as a racemate. The molecular framework is somewhat bent; the coumarin moiety and the pyran ring are inclined by 7.85 (5)°. The molecular structure is characterized...

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Main Authors: S. Antony Inglebert, K. Sethusankar, Yuvaraj Arun, Paramasivam T. Perumal
Format: Article
Language:English
Published: International Union of Crystallography 2011-11-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536811041493
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spelling doaj-05f036f463914b0c92ba9a53b52e50172020-11-25T00:53:19ZengInternational Union of CrystallographyActa Crystallographica Section E1600-53682011-11-016711o2955o295510.1107/S1600536811041493rac-Dimethyl 2-(tert-butylamino)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3,4-dicarboxylateS. Antony InglebertK. SethusankarYuvaraj ArunParamasivam T. PerumalThe title compound, C20H21NO7, is asymmetric with a chiral centre located in the pyran ring and crystallizes as a racemate. The molecular framework is somewhat bent; the coumarin moiety and the pyran ring are inclined by 7.85 (5)°. The molecular structure is characterized by an intramolecular N—H...O hydrogen bond, which generates an S(6) ring motif, and the crystal packing is stabilized by intermolecular C—H...O hydrogen bonds. The 3-carboxylate O atom is involved in both of them, having a bifurcated character.http://scripts.iucr.org/cgi-bin/paper?S1600536811041493
collection DOAJ
language English
format Article
sources DOAJ
author S. Antony Inglebert
K. Sethusankar
Yuvaraj Arun
Paramasivam T. Perumal
spellingShingle S. Antony Inglebert
K. Sethusankar
Yuvaraj Arun
Paramasivam T. Perumal
rac-Dimethyl 2-(tert-butylamino)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3,4-dicarboxylate
Acta Crystallographica Section E
author_facet S. Antony Inglebert
K. Sethusankar
Yuvaraj Arun
Paramasivam T. Perumal
author_sort S. Antony Inglebert
title rac-Dimethyl 2-(tert-butylamino)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3,4-dicarboxylate
title_short rac-Dimethyl 2-(tert-butylamino)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3,4-dicarboxylate
title_full rac-Dimethyl 2-(tert-butylamino)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3,4-dicarboxylate
title_fullStr rac-Dimethyl 2-(tert-butylamino)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3,4-dicarboxylate
title_full_unstemmed rac-Dimethyl 2-(tert-butylamino)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3,4-dicarboxylate
title_sort rac-dimethyl 2-(tert-butylamino)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3,4-dicarboxylate
publisher International Union of Crystallography
series Acta Crystallographica Section E
issn 1600-5368
publishDate 2011-11-01
description The title compound, C20H21NO7, is asymmetric with a chiral centre located in the pyran ring and crystallizes as a racemate. The molecular framework is somewhat bent; the coumarin moiety and the pyran ring are inclined by 7.85 (5)°. The molecular structure is characterized by an intramolecular N—H...O hydrogen bond, which generates an S(6) ring motif, and the crystal packing is stabilized by intermolecular C—H...O hydrogen bonds. The 3-carboxylate O atom is involved in both of them, having a bifurcated character.
url http://scripts.iucr.org/cgi-bin/paper?S1600536811041493
work_keys_str_mv AT santonyinglebert racdimethyl2tertbutylamino5oxo45dihydropyrano32cchromene34dicarboxylate
AT ksethusankar racdimethyl2tertbutylamino5oxo45dihydropyrano32cchromene34dicarboxylate
AT yuvarajarun racdimethyl2tertbutylamino5oxo45dihydropyrano32cchromene34dicarboxylate
AT paramasivamtperumal racdimethyl2tertbutylamino5oxo45dihydropyrano32cchromene34dicarboxylate
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