Acta Crystallographica Section C

Crystal Structure Communications

Volume 57, Part 11 (November 2001)

Acta Cryst. (2001). C57, 1363-1366 [doi:10.1107/S0108270101017644]

Two halodeoxy sucrose analogues

A. Linden, C. K. Lee and A. S. Muhammad Sofian

Abstract: At 160 K, the structure of 4-bromo-4-deoxysucrose, C₁₂H₂₁BrO₁₀, is very similar to that of sucrose, particularly with respect to the conformation of the glycosidic linkage. As in sucrose, an intramolecular hydrogen bond exists between the glucopyranosyl and the fructofuranosyl rings. Conversely, the structure of 1',6'-dibromo-4-fluoro-4,1',6'-trideoxysucrose monohydrate, C₁₂H₁₉Br₂FO₈·H₂O, shows large conformational differences when compared with the structures of both sucrose and sucralose. This compound does not exhibit any intramolecular hydrogen bonds. In each compound, a complex series of intermolecular hydrogen bonds link the molecules into an infinite three-dimensional framework. The absolute configuration of each molecule has been determined.

Formula: C₁₂H₂₁BrO₁₀ and C₁₂H₁₉Br₂FO₈·H₂O

Online 13 November 2001


	Structure factor file (CIF format) (212.9 kbytes) Contains datablock I

	Structure factor file (CIF format) (239.8 kbytes) Contains datablock II

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