What Is 2,3,4,6-Tetra-O-acetyl-α-D-glucopyranosyl Fluoride?

2,3,4,6-Tetra-O-acetyl-α-D-glucopyranosyl fluoride is a monosaccharide building block in which all four free hydroxyl groups of D-glucose (at positions 2, 3, 4, and 6) are protected as acetate esters, and the anomeric hydroxyl at position 1 is replaced by a fluorine atom in the α configuration. The compound belongs to the class of glycosyl fluorides, a well-established family of glycosyl donors prized for their stability under neutral storage conditions yet high reactivity toward glycosylation when activated by appropriate promoters.

The α-anomeric configuration is significant because it influences the stereochemical outcome of glycosylation reactions. With appropriate promoters and reaction conditions, this donor can be used to access both α- and β-linked glycosidic products, making it a versatile intermediate in the synthesis of oligosaccharides, glycoconjugates, and related compounds.

What Are the Primary Applications of This Compound?

The principal use of 2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl fluoride is as a glycosyl donor in chemical glycosylation reactions. Glycosyl fluorides are activated by fluorophilic Lewis acid promoters — commonly used examples include boron trifluoride etherate (BF₃·OEt₂), tin(II) chloride/silver perchlorate combinations, and other Lewis acid systems — to generate an oxocarbenium-ion-like reactive intermediate that couples with nucleophilic acceptors (alcohols, thiols, or carbon nucleophiles) to form new glycosidic bonds.

Typical application areas include:

• Oligosaccharide synthesis: Building defined di-, tri-, and higher oligosaccharides for biological studies.
• Glycoconjugate preparation: Synthesis of glycopeptides, glycolipids, and neoglycoconjugates.
• C-Glycoside synthesis: Reaction with carbon nucleophiles to form C-glycosidic bonds.
• Mechanistic studies: Used as a model donor to probe glycosylation mechanisms and stereoselectivity.

After glycosylation, the acetyl protecting groups are readily removed under standard Zemplén deacetylation conditions (catalytic sodium methoxide in methanol) to reveal free hydroxyl groups.

How Should This Compound Be Stored and Handled?

Glycosyl fluorides are generally more stable than many other glycosyl donors (e.g., trichloroacetimidates or thioglycosides under certain activation conditions), but correct storage remains essential to maintain product integrity.

Storage recommendations (general best practice — confirm with Aladdin Certificate of Analysis):

• Store in a tightly sealed container under dry conditions, away from moisture and protic solvents.
• Refrigerated storage (2–8 °C) or freezer storage (−20 °C) is typically recommended for long-term stability.
• Keep away from strong Lewis acids, strong bases, and fluoride-reactive metals, which could prematurely activate or decompose the compound.

Handling precautions:

• Work in a well-ventilated fume hood; fluorine-containing compounds can release hydrogen fluoride (HF) upon decomposition.
• Wear appropriate personal protective equipment: nitrile gloves, safety glasses, and a lab coat.
• Consult the Safety Data Sheet (SDS) provided by Aladdin Scientific before use.

Ordering, Specifications, and Quality

2,3,4,6-Tetra-O-acetyl-α-D-glucopyranosyl fluoride is available from Aladdin Scientific under SKU A115444. Researchers and procurement teams should note the following when ordering:

• Purity: Confirm the purity grade on the product page and Certificate of Analysis (CoA). For synthetic applications, high purity (≥95% or higher) is strongly preferred to minimise side reactions.
• Available pack sizes: Check the Aladdin Scientific product listing for current available quantities and pricing.
• Documentation: A CoA, SDS, and structural confirmation data (NMR, HPLC, or MS) are typically provided or available on request.
• Lead time: Contact Aladdin Scientific customer service for stock availability and estimated delivery times.

For volume pricing, custom pack sizes, or bulk orders, please contact the Aladdin Scientific sales team directly through the website or by email.