Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 6 (June 2013)


organic compounds



zq2199 scheme

Acta Cryst. (2013). E69, o917    [ doi:10.1107/S160053681301266X ]

2-Acetylamino-1,3,4,6-tetra-O-(trimethylsilyl)-2-deoxy-[alpha]-D-glucopyranose

Z.-D. Cheng, Y.-L. Cui and J.-W. Mao

Abstract: The title compound, C20H47NO6Si4, was synthesized by per-O-trimethylsilylation of N-acetyl-D-glucosamine using chlorotrimethylsilane in the presence of hexamethyldisiloxane. The trimethylsilyl group and acetamido group are located on the same side of the pyran ring, showing an [alpha]-configuration glycoside. One of the trimethylsilyl groups is disordered over two orientations, with site-occupancy factors of 0.625 (9) and 0.375 (9). In the crystal, N-H...O hydrogen bonds link the molecules into supramolecular chains along the a-axis direction.


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