Acta Cryst. (2007). C63, o726-o728 [ doi:10.1107/S0108270107048664 ]
Abstract: Three cyclooctitol derivatives, in the form of a tetraacetate, (1S*,2R*,3S*,4S*)-2,3,4-triacetoxycyclooctan-1-ylmethyl acetate, C17H26O8, and two regioisomeric acetonide triacetates, (3aS*,4R*,8S*,9S*,9aS*)-8,9-diacetoxy-2,2-dimethylcyclooctano[d][1,3]dioxan-4-ymethyl acetate and (3aS,4R,7S,9R,9aS)-7,9-diacetoxy-2,2-dimethylcyclooctano[d][1,3]dioxan-4-ylmethyl acetate, both C18H28O8, have been studied. The conformation of the cyclooctane ring in the three compounds is quite close to the boat-chair form of the parent hydrocarbon. Packing is effected through weak C-HO and van der Waals contacts.
Formula: C17H26O8 and C18H28O8
Structure factor file (CIF format) (168.1 kbytes)
Structure factor file (CIF format) (183.7 kbytes)
Structure factor file (CIF format) (200.3 kbytes)
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