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

The title compound, C(20)H(21)NO(7), 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 intra­molecul...

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Detalles Bibliográficos
Autores principales: Inglebert, S. Antony, Sethusankar, K., Arun, Yuvaraj, Perumal, Paramasivam T.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2011
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3247363/
https://www.ncbi.nlm.nih.gov/pubmed/22219981
http://dx.doi.org/10.1107/S1600536811041493
Descripción
Sumario:The title compound, C(20)H(21)NO(7), 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.

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