1,4-Anhydro-D-glucitol, also known as 1,4-dideoxy-1,4-epoxy-D-glucitol, is a cyclic polyol derived from D-glucose by intramolecular dehydration of D-glucitol (sorbitol) between C-1 and C-4, forming an ether bridge. It retains several hydroxyl groups, making it highly water-soluble and non-reducing. Used as a bio-based platform chemical, it is a precursor of isosorbide and has applications in polymers, pharmaceuticals, osmoregulation, and cryoprotection. It serves as a valuable chiral building block for synthesizing complex molecules.
IUPAC Name
- (3R,3aR,6R,6aR)-Hexahydrofuro[3,2-b]furan-3,6-diol
Appearance
- White to off-white crystalline solid or powder
Source
- Synthetically derived via acidic dehydration of D-glucitol (sorbitol)
- Trace natural occurrences in plants and processed food products
Molecular Weight and Structure
- Molecular Weight: 164.16 g/mol
- Molecular Formula: C6H12O5
- Structure: Two fused five-membered tetrahydrofuran rings connected by an oxygen ether bridge with hydroxyl groups attached
Sugar Specificity
- Does not exhibit receptor-binding sugar specificity
- Used as chiral building block in synthesis
Biological Activity
- Investigated as osmotic diuretic and cryoprotectant
- Precursor to biologically important isosorbide
Purity and Microbial Contamination
- High purity required for chemical/pharmaceutical uses
- Purity confirmed by chromatography and NMR
- Microbial contamination controlled for pharmaceutical/food uses
Identity and Quality Control
- Confirmed by ^1H and ^13C NMR, mass spectrometry
- QC includes purity, impurities, water content (Karl Fischer), melting point, optical rotation
Shelf Life and Storage
- Stable for years if stored dry, protected from light, air
- Typically stored at room temperature or refrigerated
Application
- Precursor for isosorbide synthesis
- Cryoprotectant and osmotic diuretic candidate
- Chiral building block for pharmaceutical synthesis
- Polymer chemistry and sustainable bio-based materials
Citation
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