Redetermination and absolute configuration of 6-hydroxysalvinolone

Redetermination and absolute configuration of 6-hydroxysalvinolone

The crystal structure of the title compound [systematic name: 5,6,10-trihydroxy-7-isopropyl-1,1,4a-trimethyl-2,3,4,4a-tetrahydrophenanthren-9(1H)-one], C20H26O4, has been reported previously [Salae et al. (2009). Acta Cryst. E65, o2379–o2380], but the absolute configuration could not b...

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Main Authors: Hoong-Kun Fun, Ching Kheng Quah, Suchada Chantrapromma
Format: Article
Language:English
Published: International Union of Crystallography 2010-01-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536809053197
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spelling doaj-de4678ccfaa14f6dbce8fad9565f3a3d2020-11-25T02:46:53ZengInternational Union of CrystallographyActa Crystallographica Section E1600-53682010-01-01661o146o14710.1107/S1600536809053197Redetermination and absolute configuration of 6-hydroxysalvinoloneHoong-Kun FunChing Kheng QuahSuchada ChantraprommaThe crystal structure of the title compound [systematic name: 5,6,10-trihydroxy-7-isopropyl-1,1,4a-trimethyl-2,3,4,4a-tetrahydrophenanthren-9(1H)-one], C20H26O4, has been reported previously [Salae et al. (2009). Acta Cryst. E65, o2379–o2380], but the absolute configuration could not be determined as there was no significant anomalous dispersion using data collected with Mo radiation. The absolute configuration has now been determined by refinement of the Flack parameter with data collected using Cu radiation. The absolute configuration at position 4a of the diterpenoid is (R)-methyl; other features of the molecule and its crystal packing are similar to those previously described. http://scripts.iucr.org/cgi-bin/paper?S1600536809053197
collection DOAJ
language English
format Article
sources DOAJ
author Hoong-Kun Fun
Ching Kheng Quah
Suchada Chantrapromma
spellingShingle Hoong-Kun Fun
Ching Kheng Quah
Suchada Chantrapromma
Redetermination and absolute configuration of 6-hydroxysalvinolone
Acta Crystallographica Section E
author_facet Hoong-Kun Fun
Ching Kheng Quah
Suchada Chantrapromma
author_sort Hoong-Kun Fun
title Redetermination and absolute configuration of 6-hydroxysalvinolone
title_short Redetermination and absolute configuration of 6-hydroxysalvinolone
title_full Redetermination and absolute configuration of 6-hydroxysalvinolone
title_fullStr Redetermination and absolute configuration of 6-hydroxysalvinolone
title_full_unstemmed Redetermination and absolute configuration of 6-hydroxysalvinolone
title_sort redetermination and absolute configuration of 6-hydroxysalvinolone
publisher International Union of Crystallography
series Acta Crystallographica Section E
issn 1600-5368
publishDate 2010-01-01
description The crystal structure of the title compound [systematic name: 5,6,10-trihydroxy-7-isopropyl-1,1,4a-trimethyl-2,3,4,4a-tetrahydrophenanthren-9(1H)-one], C20H26O4, has been reported previously [Salae et al. (2009). Acta Cryst. E65, o2379–o2380], but the absolute configuration could not be determined as there was no significant anomalous dispersion using data collected with Mo radiation. The absolute configuration has now been determined by refinement of the Flack parameter with data collected using Cu radiation. The absolute configuration at position 4a of the diterpenoid is (R)-methyl; other features of the molecule and its crystal packing are similar to those previously described.
url http://scripts.iucr.org/cgi-bin/paper?S1600536809053197
work_keys_str_mv AT hoongkunfun redeterminationandabsoluteconfigurationof6hydroxysalvinolone
AT chingkhengquah redeterminationandabsoluteconfigurationof6hydroxysalvinolone
AT suchadachantrapromma redeterminationandabsoluteconfigurationof6hydroxysalvinolone
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