CAS · 4799-67-1
Product Overview
3-Benzyloxy-1,2-propanediol is a high-purity pharmaceutical-intermediates supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Appearance: | Colorless liquid |
|---|---|
| Purity (GC): | 98% min |
| Water: | 0.5% max |
Applications
1. Pharmaceutical Intermediate
3-Benzyloxy-1,2-propanediol is commonly used as a building block in pharmaceutical synthesis, particularly in the preparation of active pharmaceutical ingredients (APIs) and drug candidates.
Chiral Synthesis: The molecule contains two hydroxyl groups and a benzyloxy-protected alcohol, making it suitable for selective functionalization in enantioselective or diastereoselective syntheses.
Beta-Blocker Synthesis: It serves as an intermediate in the synthesis of beta-adrenergic receptor blockers (beta-blockers), such as propranolol analogs.
HIV Protease Inhibitors: The glycerol moiety is present in the structure of some HIV protease inhibitors, and 3-benzyloxy derivatives can be used in their synthesis.
2. Chiral Building Block in Organic Chemistry
The diol structure with stereocenters allows it to be used in asymmetric synthesis.
Synthesis of Chiral Ligands or Auxiliaries: It can be a precursor for chiral auxiliaries, catalysts, or ligands used in asymmetric catalysis.
Resolution of Racemic Mixtures: Due to its stereochemistry, it can be used in methods for resolution or synthesis of optically active compounds.
3. Protecting Group Strategy in Multi-Step Organic Synthesis
The benzyl (Bn) group is a common protecting group for alcohols. In 3-Benzyloxy-1,2-propanediol, the primary hydroxyl is protected, while the secondary diol is available for further reactions.
Stepwise Functionalization: This makes the molecule very useful in multi-step synthesis where selective deprotection is needed.
Stable Under Mild Conditions: The benzyl ether is stable under basic and mild acidic conditions, allowing flexibility in synthetic design.
4. Polymer and Material Science (Limited Use)
While less common, modified glycerol derivatives like 3-benzyloxy-1,2-propanediol may serve as monomers or intermediates in specialty polymers or functional materials.
Benefits
1. Synthetic Versatility
Offers both nucleophilic hydroxyl groups and a benzyloxy-protected site, providing orthogonal reactivity.
Can participate in reactions like esterification, etherification, oxidation, and nucleophilic substitution.
2. Useful Chirality and Stereocontrol
Available as racemic or optically pure forms, which is crucial for stereoselective synthesis of chiral drugs or catalysts.
3. Efficient Protecting Group Strategy
Benzyl group can be easily removed via hydrogenolysis (H₂/Pd), allowing selective deprotection after key transformations.
4. Stable and Easy to Handle
Exhibits chemical stability under common reaction conditions and is typically a low-volatility compound, making it easy to store and use in laboratory or industrial settings.
Conclusion
3-Benzyloxy-1,2-propanediol (CAS 4799-67-1) is a valuable and versatile intermediate in pharmaceutical synthesis, chiral chemistry, and organic synthesis. Its unique structure-featuring a benzyloxy-protected alcohol and a reactive 1,2-diol moiety-makes it highly adaptable for use in multi-step synthesis, especially for chiral drug molecules and fine chemicals. With its wide range of applications and ease of handling, it remains a staple compound in both research and industrial chemical synthesis.
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