The concomitant crystallization of two polymorphs of 1-deoxy-alpha-D-tagatose.

Nigel A Jones, Sarah F Jenkinson, Raquel Soengas, Ken Izumori, George W J Fleet, David J Watkin

Department of Organic Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, England. nigel.jones@chem.ox.ac.uk

Acta crystallographica. Section C, Crystal structure communications 2007 Jan

filter terms:

The crystalline form of 1-deoxy-D-tagatose, C6H12O5, is shown to be 1-deoxy-alpha-D-tagatopyranose; the absolute configuration is determined by use of D-lyxono-1,4-lactone as the starting material. The title compound crystallized as concomitant polymorphs from a mixture of ethyl actate and methanol. Although the melting points of the materials differ by 7 K, the molecular conformations are almost identical and, in both polymorphs, each molecule is subject to four O-H...O hydrogen bonds.

Citation

Nigel A Jones, Sarah F Jenkinson, Raquel Soengas, Ken Izumori, George W J Fleet, David J Watkin. The concomitant crystallization of two polymorphs of 1-deoxy-alpha-D-tagatose. Acta crystallographica. Section C, Crystal structure communications. 2007 Jan;63(Pt 1):o7-10