2,3:4,5-Di-O-isopropyl-idenefructos-1-yl p-toluene-sulfonate

Area of Science:

• Organic Chemistry
• Crystallography
• Carbohydrate Chemistry

Background:

• Synthesis of novel carbohydrate derivatives is crucial for developing new materials and pharmaceuticals.
• Understanding the stereochemistry and conformational analysis of complex organic molecules is fundamental in chemistry.

Purpose of the Study:

• To synthesize and characterize a novel compound derived from fructopyranose.
• To determine the absolute configuration and crystal structure of the synthesized compound.
• To investigate the intermolecular interactions within the crystal lattice.

Main Methods:

• Chemical synthesis utilizing 2,3:4,5-di-O-isopropylidene-β-d-fructopyranose as a precursor.
• X-ray diffraction measurement to elucidate the crystal structure.
• Anomalous dispersion effects analysis for absolute configuration determination.

Main Results:

• Successful synthesis of the title compound, C(19)H(26)O(8)S.
• Confirmation of the absolute configuration of the fused ring system.
• Identification of a twist-boat conformation for the six-membered β-fructopyranose ring.
• Observation of a three-dimensional crystal network formed by non-classical C-H⋯O hydrogen bonds.

Conclusions:

• The study presents a novel synthetic route to a complex fructopyranose derivative.
• The determined crystal structure provides insights into the conformational preferences and intermolecular interactions of this class of compounds.
• This work contributes to the understanding of carbohydrate chemistry and solid-state structures.