Specifications Table

Product Name – 1,8-Diazabicyclo [5.4.0] Undec-7-ene 98% For Synthesis
Quantity/Pack Size – 25 ml, 100 ml, 500 ml
Form – Liquid
Grade – For Synthesis (98% Purity)
Application – Strong organic base, catalyst in organic synthesis, polymerization initiator

Product Overview

1,8-Diazabicyclo [5.4.0] Undec-7-ene (DBU) is a highly efficient, non-nucleophilic superbase widely used in organic synthesis due to its exceptional basicity and selectivity. This 98% pure reagent is a colorless to pale yellow liquid with a characteristic amine odor, offering superior performance in deprotonation reactions, transesterifications, and as a catalyst in polymerization processes. Its bicyclic structure provides steric hindrance, minimizing side reactions while maintaining high reactivity, making it ideal for sensitive synthetic pathways. The reagent is soluble in most organic solvents, including alcohols, ethers, and hydrocarbons, ensuring compatibility with diverse reaction conditions. Its low volatility and thermal stability further enhance its utility in prolonged or high-temperature reactions. As a synthesis-grade chemical, this DBU variant undergoes rigorous purification to eliminate trace impurities, ensuring consistent results in research and development applications. The liquid form allows for precise dosing, while its high boiling point reduces evaporation losses during storage or use.

FAQs

1. What is the shelf life of 1,8-Diazabicyclo [5.4.0] Undec-7-ene 98% when stored properly?

The reagent remains stable for 24 months from the date of manufacture when stored in a tightly sealed container at room temperature, protected from moisture and direct sunlight.

2. Is this DBU compatible with aqueous reaction systems?

While DBU is primarily soluble in organic solvents, it can be used in biphasic systems with careful pH control, though its efficiency may reduce in highly aqueous environments.

3. What are the key safety precautions when handling this chemical?

Always use in a fume hood with proper ventilation, wear nitrile gloves and safety goggles, and avoid inhalation or skin contact due to its corrosive and irritant properties.

4. Can this be used as a substitute for other organic superbases like MTBD or TBD?

Yes, but reaction conditions may need optimization as DBU has a different pKa and steric profile compared to guanidine-based superbases.

5. How should I dispose of unused or expired DBU?

Neutralize with dilute acid before disposal according to local hazardous waste regulations, as it remains chemically active even after expiration.