Description
Specifications Table
Product Name – Lithium bis(trimethylsilyl)amide, 1.0M sol. in methyl tert-butyl ether, AcroSeal®
Quantity/Pack Size – 100ML, 800ML
Form – Solution
Grade – Reagent
Application – Strong non-nucleophilic base for organic synthesis
Product Overview
Lithium bis(trimethylsilyl)amide (LiHMDS) is a highly reactive, non-nucleophilic strong base commonly used in organic synthesis. This 1.0M solution in methyl tert-butyl ether (MTBE) offers enhanced solubility and stability compared to traditional solvents like THF or hexane. The AcroSeal® packaging ensures minimal exposure to moisture and air, preserving the reagent’s potency for critical reactions. The solution is ideal for deprotonation reactions, enolate formation, and other transformations requiring a strong, sterically hindered base. Its compatibility with a wide range of functional groups makes it a versatile choice for complex synthetic pathways. The MTBE solvent provides a balanced polarity environment, optimizing reactivity while maintaining solution stability. This reagent is particularly useful in low-temperature reactions where precise control over basicity is required. The high-purity formulation minimizes side reactions, ensuring cleaner product formation and higher yields in sensitive applications.
FAQs
1. What is the typical shelf life of this Lithium Bis(trimethylsilyl)amide solution?
When stored unopened in its original AcroSeal® packaging at recommended temperatures, the solution maintains its specified concentration for at least 12 months from the date of manufacture.
2. Can this solution be used directly without further purification?
The reagent is provided in high-purity form suitable for most laboratory applications, though some specialized syntheses may require additional drying or purification steps depending on specific reaction requirements.
3. What precautions should be taken when handling this MTBE solution?
MTBE is highly volatile and flammable. Handle in a well-ventilated fume hood, use appropriate PPE, and avoid all ignition sources. The solution is also moisture-sensitive, so maintain inert atmosphere conditions during use.
4. How does this compare to Lithium Diisopropylamide (LDA) in reactivity?
LiHMDS is generally considered a stronger base than LDA with similar steric properties, though the choice between them depends on specific substrate requirements and solvent compatibility in your reaction system.
5. What storage conditions are recommended for long-term stability?
Store tightly sealed in the original container at 2-8°C, protected from light and moisture. Avoid repeated temperature fluctuations that could compromise the seal integrity.
