2-De-oxy-α-d-arabino-hexopyran-ose

Area of Science:

• Carbohydrate Chemistry
• Structural Biology
• Crystallography

Background:

• 2-deoxy-d-arabino-hexose is a deoxy sugar with potential biological relevance.
• Understanding the structural properties of monosaccharides is crucial for various biochemical pathways.
• The α-pyran-ose form is a common cyclic structure for hexoses.

Purpose of the Study:

• To elucidate the precise three-dimensional structure of the α-pyran-ose form of 2-deoxy-d-arabino-hexose.
• To characterize the conformational preferences and intermolecular interactions in the crystalline state.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
• Analysis of bond lengths, bond angles, and torsion angles to define the conformation.
• Identification and analysis of intermolecular hydrogen bonding networks.

Main Results:

• The compound was identified as C(6)H(12)O(5), the α-pyran-ose form of 2-deoxy-d-arabino-hexose.
• The pyranose ring adopts a stable (4)C(1) chair conformation.
• The anomeric hydroxyl group is in the axial position, while other substituents are equatorial.
• A comprehensive three-dimensional hydrogen-bonded network was observed, involving all four hydroxyl groups as donors.

Conclusions:

• The crystal structure of 2-deoxy-d-arabino-hexose reveals a defined (4)C(1) conformation.
• The extensive hydrogen bonding network plays a significant role in stabilizing the crystal lattice.
• This structural information provides a foundation for understanding the behavior of deoxy sugars in biological systems.