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Crystal structure of (±)-(7RS,8SR)-7-methyl-1,4-dioxa-spiro-[4.5]decane-7,8-diol.

ABSTRACT: In the title compound, C9H16O4, the five-membered dioxolane ring adopts a twist conformation; two adjacent C atoms deviate alternately from the mean plane of other atoms by -0.297?(4) and 0.288?(4)?Å. The spiro-fused cyclo-hexane ring shows a chair form. The hy-droxy group substituted in an axial position makes an intra-molecular O-H?O hydrogen bond with one of the O atoms in the cyclic ether, forming an S(6) ring motif. In the crystal, the O-H?O hydrogen bond involving the equatorial hy-droxy group connects the mol-ecules into a zigzag chain with a C(5) motif running along the c axis.

SUBMITTER: Oishi T

PROVIDER: S-EPMC4647432 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature

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Crystal structure of (±)-(7RS,8SR)-7-methyl-1,4-dioxa-spiro-[4.5]decane-7,8-diol.

Oishi Takeshi T Yamamoto Hiroaki H Sugai Tomoya T Fukaya Keisuke K Yamaguchi Yu Y Watanabe Ami A Sato Takaaki T Chida Noritaka N

Acta crystallographica. Section E, Crystallographic communications 20150917 Pt 10

In the title compound, C9H16O4, the five-membered dioxolane ring adopts a twist conformation; two adjacent C atoms deviate alternately from the mean plane of other atoms by -0.297 (4) and 0.288 (4) Å. The spiro-fused cyclo-hexane ring shows a chair form. The hy-droxy group substituted in an axial position makes an intra-molecular O-H⋯O hydrogen bond with one of the O atoms in the cyclic ether, forming an S(6) ring motif. In the crystal, the O-H⋯O hydrogen bond involving the equatorial hy-droxy g ...[more]

PMID: 26594401

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