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Curcumenol from Curcuma zedoaria: a second monoclinic modification.


ABSTRACT: The title compound, systematic name 9-isopropyl-idene-2,6-dimethyl-11-oxatricyclo-[6.2.1.0(1,5)]undec-6-en-8-ol, C(15)H(22)O(2), which crystallizes with two mol-ecules of similar conformation in the asymmetric unit, features three fused rings, two of which are five-membered and the third six-membered. Of the two five-membered rings, the one with an O atom has a distinct envelope shape (with the O atom representing the flap). The six-membered ring is also envelope-shaped as it shares a common O atom with the five-membered ring. In the crystal, the two independent mol-ecules are linked by a pair of O-H?O hydrogen bonds, generating a dimer.

SUBMITTER: Ahmed Hamdi OA 

PROVIDER: S-EPMC3009189 | biostudies-literature | 2010 Oct

REPOSITORIES: biostudies-literature

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Curcumenol from Curcuma zedoaria: a second monoclinic modification.

Ahmed Hamdi Omer Abdalla OA   Awang Khalijah K   Hadi A Hamid A AH   Syamsir Devi Rosmy DR   Ng Seik Weng SW  

Acta crystallographica. Section E, Structure reports online 20101020 Pt 11


The title compound, systematic name 9-isopropyl-idene-2,6-dimethyl-11-oxatricyclo-[6.2.1.0(1,5)]undec-6-en-8-ol, C(15)H(22)O(2), which crystallizes with two mol-ecules of similar conformation in the asymmetric unit, features three fused rings, two of which are five-membered and the third six-membered. Of the two five-membered rings, the one with an O atom has a distinct envelope shape (with the O atom representing the flap). The six-membered ring is also envelope-shaped as it shares a common O a  ...[more]

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