(1S,3R,8R,9R,10S)-2,2-Dibromo-3,7,7,10-tetramethyl-9β,10β-epoxy-3,7,7,10-tetramethyltricyclo[6.4.0.01,3]dodecane

The title compound, C16H24Br2O, was synthesized from β-himachalene (3,5,5,9-tetramethyl-2,4a,5,6,7,8-hexahydro-1H-benzocycloheptene), which was isolated from the essential oil of the Atlas cedar (Cedrus atlantica). The molecule contains fused six- and seven-membered rings, each linked to a...

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Main Authors: Abdelouahd Oukhrib, Ahmed Benharref, Mohamed Saadi, Moha Berraho, Lahcen El Ammari
Format: Article
Language:English
Published: International Union of Crystallography 2013-04-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536813006077
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author Abdelouahd Oukhrib
Ahmed Benharref
Mohamed Saadi
Moha Berraho
Lahcen El Ammari
author_facet Abdelouahd Oukhrib
Ahmed Benharref
Mohamed Saadi
Moha Berraho
Lahcen El Ammari
author_sort Abdelouahd Oukhrib
collection DOAJ
description The title compound, C16H24Br2O, was synthesized from β-himachalene (3,5,5,9-tetramethyl-2,4a,5,6,7,8-hexahydro-1H-benzocycloheptene), which was isolated from the essential oil of the Atlas cedar (Cedrus atlantica). The molecule contains fused six- and seven-membered rings, each linked to a three-membered ring. The six-membered ring has a half-chair conformation, while the seven-membered ring displays a chair conformation. The dihedral angle between the mean planes through the six- and seven-membered rings is 39.55 (12)°. The two three-membered rings, linked to the six- and seven-membered rings, are nearly perpendicular to the six-membered ring, making dihedral angles of 78.6 (2) and 80.5 (2)°, respectively. The absolute structure was established unambiguously from anomalous dispersion effects. In the crystal, each molecule is linked to its symmetry-equivalent partner by C—H...O hydrogen bonds, forming zigzag chains parallel to [100].
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spelling doaj.art-93f5c969fe21429e9100d8cd4a0b000f2022-12-21T23:50:33ZengInternational Union of CrystallographyActa Crystallographica Section E1600-53682013-04-01694o521o52210.1107/S1600536813006077(1S,3R,8R,9R,10S)-2,2-Dibromo-3,7,7,10-tetramethyl-9β,10β-epoxy-3,7,7,10-tetramethyltricyclo[6.4.0.01,3]dodecaneAbdelouahd OukhribAhmed BenharrefMohamed SaadiMoha BerrahoLahcen El AmmariThe title compound, C16H24Br2O, was synthesized from β-himachalene (3,5,5,9-tetramethyl-2,4a,5,6,7,8-hexahydro-1H-benzocycloheptene), which was isolated from the essential oil of the Atlas cedar (Cedrus atlantica). The molecule contains fused six- and seven-membered rings, each linked to a three-membered ring. The six-membered ring has a half-chair conformation, while the seven-membered ring displays a chair conformation. The dihedral angle between the mean planes through the six- and seven-membered rings is 39.55 (12)°. The two three-membered rings, linked to the six- and seven-membered rings, are nearly perpendicular to the six-membered ring, making dihedral angles of 78.6 (2) and 80.5 (2)°, respectively. The absolute structure was established unambiguously from anomalous dispersion effects. In the crystal, each molecule is linked to its symmetry-equivalent partner by C—H...O hydrogen bonds, forming zigzag chains parallel to [100].http://scripts.iucr.org/cgi-bin/paper?S1600536813006077
spellingShingle Abdelouahd Oukhrib
Ahmed Benharref
Mohamed Saadi
Moha Berraho
Lahcen El Ammari
(1S,3R,8R,9R,10S)-2,2-Dibromo-3,7,7,10-tetramethyl-9β,10β-epoxy-3,7,7,10-tetramethyltricyclo[6.4.0.01,3]dodecane
Acta Crystallographica Section E
title (1S,3R,8R,9R,10S)-2,2-Dibromo-3,7,7,10-tetramethyl-9β,10β-epoxy-3,7,7,10-tetramethyltricyclo[6.4.0.01,3]dodecane
title_full (1S,3R,8R,9R,10S)-2,2-Dibromo-3,7,7,10-tetramethyl-9β,10β-epoxy-3,7,7,10-tetramethyltricyclo[6.4.0.01,3]dodecane
title_fullStr (1S,3R,8R,9R,10S)-2,2-Dibromo-3,7,7,10-tetramethyl-9β,10β-epoxy-3,7,7,10-tetramethyltricyclo[6.4.0.01,3]dodecane
title_full_unstemmed (1S,3R,8R,9R,10S)-2,2-Dibromo-3,7,7,10-tetramethyl-9β,10β-epoxy-3,7,7,10-tetramethyltricyclo[6.4.0.01,3]dodecane
title_short (1S,3R,8R,9R,10S)-2,2-Dibromo-3,7,7,10-tetramethyl-9β,10β-epoxy-3,7,7,10-tetramethyltricyclo[6.4.0.01,3]dodecane
title_sort 1s 3r 8r 9r 10s 2 2 dibromo 3 7 7 10 tetramethyl 9 946 10 946 epoxy 3 7 7 10 tetramethyltricyclo 6 4 0 01 3 dodecane
url http://scripts.iucr.org/cgi-bin/paper?S1600536813006077
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