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. 2013 Sep 7;69(Pt 10):o1512.
doi: 10.1107/S1600536813022447. eCollection 2013.

1,2:5,6-Di-O-iso-propyl-idene-3-C-methyl-α-d-allo-furan-ose

Luana da Silva Magalhães Forezi  1 , Marcos Moitrel Pequeno Silva, Fernanda da Costa Santos, Vitor Francisco Ferreira, Maria Cecília Bastos Vieira de Souza
Affiliations

1,2:5,6-Di-O-iso-propyl-idene-3-C-methyl-α-d-allo-furan-ose

Luana da Silva Magalhães Forezi et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title carbohydrate, C13H22O6, is a derivative of d-glycose, in which the furan-osidic and iso-propyl-idene rings are in twisted conformations. The mean plane of the furan-osidic ring makes a dihedral angle of 70.32 (18)° with the mean plane of the fused iso-propyl-idene ring. The methyl groups in the other iso-propyl-idene ring are disordered over two sets of sites, with an occupancy ratio of 0.74 (6):0.26 (6). In the crystal, mol-ecules are linked by O-H⋯O hydrogen bonds into chains with graph-set notation C(5) along [100]. Weak C-H⋯O interactions also occur.

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Figures

Fig. 1.
Fig. 1.
Ellipsoid plot representation of the molecular structure of compound I with displacement ellipsoids drawn at the 30% probability level. Atoms C71A/B and C72A/B are disordered with fractional occupancies of 0.74 (6):0.26 (6) for the A and B components, respectively.
Fig. 2.
Fig. 2.
A packing diagram of (I), viewed approximately down the b axis. Hydrogen-bonds are shown by dashed lines.
See this image and copyright information in PMC

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