2-Hydr­oxy-1,6,7,8-tetra­meth­oxy-3-methyl­anthraquinone

The title compound, C(19)H(18)O(7), also known as chrysoobtusin, was isolated from Cassia tora L. (Leguminosae). The anthraquinone ring system is almost planar, the dihedral angle between the two benzene rings being 4.27 (4)°. The structure is stabilized by intra- and inter­molecular O—H⋯O and C—H⋯O...

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Detalles Bibliográficos
Autores principales: Zhu, Li-Cai, Zhao, Zhen-Gang, Yu, Shu-Juan
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2008
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2960471/
https://www.ncbi.nlm.nih.gov/pubmed/21201403
http://dx.doi.org/10.1107/S1600536807067864
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author Zhu, Li-Cai
Zhao, Zhen-Gang
Yu, Shu-Juan
author_facet Zhu, Li-Cai
Zhao, Zhen-Gang
Yu, Shu-Juan
author_sort Zhu, Li-Cai
collection PubMed
description The title compound, C(19)H(18)O(7), also known as chrysoobtusin, was isolated from Cassia tora L. (Leguminosae). The anthraquinone ring system is almost planar, the dihedral angle between the two benzene rings being 4.27 (4)°. The structure is stabilized by intra- and inter­molecular O—H⋯O and C—H⋯O hydrogen bonds, and by weak π–π stacking inter­actions along the b axis, with a centroid–centroid distance between related benzene rings of 3.800 (4) Å.
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spelling pubmed-29604712010-12-30 2-Hydr­oxy-1,6,7,8-tetra­meth­oxy-3-methyl­anthraquinone Zhu, Li-Cai Zhao, Zhen-Gang Yu, Shu-Juan Acta Crystallogr Sect E Struct Rep Online Organic Papers The title compound, C(19)H(18)O(7), also known as chrysoobtusin, was isolated from Cassia tora L. (Leguminosae). The anthraquinone ring system is almost planar, the dihedral angle between the two benzene rings being 4.27 (4)°. The structure is stabilized by intra- and inter­molecular O—H⋯O and C—H⋯O hydrogen bonds, and by weak π–π stacking inter­actions along the b axis, with a centroid–centroid distance between related benzene rings of 3.800 (4) Å. International Union of Crystallography 2008-01-04 /pmc/articles/PMC2960471/ /pubmed/21201403 http://dx.doi.org/10.1107/S1600536807067864 Text en © International Union of Crystallography 2008 http://journals.iucr.org/services/termsofuse.html This is an open-access article distributed under the terms described at http://journals.iucr.org/services/termsofuse.html.
spellingShingle Organic Papers
Zhu, Li-Cai
Zhao, Zhen-Gang
Yu, Shu-Juan
2-Hydr­oxy-1,6,7,8-tetra­meth­oxy-3-methyl­anthraquinone
title 2-Hydr­oxy-1,6,7,8-tetra­meth­oxy-3-methyl­anthraquinone
title_full 2-Hydr­oxy-1,6,7,8-tetra­meth­oxy-3-methyl­anthraquinone
title_fullStr 2-Hydr­oxy-1,6,7,8-tetra­meth­oxy-3-methyl­anthraquinone
title_full_unstemmed 2-Hydr­oxy-1,6,7,8-tetra­meth­oxy-3-methyl­anthraquinone
title_short 2-Hydr­oxy-1,6,7,8-tetra­meth­oxy-3-methyl­anthraquinone
title_sort 2-hydr­oxy-1,6,7,8-tetra­meth­oxy-3-methyl­anthraquinone
topic Organic Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2960471/
https://www.ncbi.nlm.nih.gov/pubmed/21201403
http://dx.doi.org/10.1107/S1600536807067864
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AT zhaozhengang 2hydroxy1678tetramethoxy3methylanthraquinone
AT yushujuan 2hydroxy1678tetramethoxy3methylanthraquinone

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