Description
Specifications Table
Product Name – Pentafluorophenylmagnesium bromide, 0.5M solution in diethyl ether, AcroSeal®
Quantity/Pack Size – 100ML
Form – Liquid (solution in diethyl ether)
Grade – Reagent grade
Application – Grignard reagent for fluorinated aromatic synthesis, organometallic reactions
Product Overview
Pentafluorophenylmagnesium bromide is a highly specialized Grignard reagent supplied as a 0.5M solution in diethyl ether, designed for demanding organic synthesis applications. This reagent is particularly valued for introducing the pentafluorophenyl moiety into target molecules, enabling the creation of fluorinated aromatic compounds with enhanced stability and unique electronic properties. The solution is prepared under strict anhydrous conditions and sealed in an AcroSeal® bottle to prevent degradation from moisture or oxygen exposure. As a moisture-sensitive and air-reactive compound, it requires careful handling under an inert atmosphere, typically nitrogen or argon, to maintain its reactivity and purity. The diethyl ether solvent ensures optimal solubility and reactivity for Grignard reactions, while the 0.5M concentration provides a balance between reagent strength and ease of dosing. This product is ideal for researchers requiring precise control over fluorinated aromatic substitutions, offering consistent performance in organometallic chemistry. The AcroSeal® packaging further ensures long-term stability during storage and transportation, minimizing the risk of premature decomposition. For best results, store under refrigeration and use immediately after opening to preserve reactivity.
FAQs
1. What precautions should be taken while handling pentafluorophenylmagnesium bromide solution?
This reagent is highly moisture-sensitive and pyrophoric. Always handle under an inert atmosphere (nitrogen/argon) using dry syringes or cannula techniques. Avoid exposure to air or water, as it can lead to violent reactions or decomposition. Use in a well-ventilated fume hood with appropriate personal protective equipment, including gloves and safety goggles.
2. Is this solution compatible with common organic solvents other than diethyl ether?
The reagent is stable in anhydrous diethyl ether, but compatibility with other solvents depends on their polarity and moisture content. THF is often used as an alternative, but avoid protic solvents like alcohols or water, which will quench the Grignard reagent. Always ensure solvents are rigorously dried and distilled before use.
3. Can this reagent be used for large-scale synthesis, or is it limited to small-scale reactions?
While the 100ML pack size is optimized for lab-scale synthesis, the reagent can be scaled up by using multiple bottles under controlled conditions. For large-scale applications, consider gradual addition and temperature control to manage the exothermic nature of Grignard reactions. Pilot testing is recommended to assess feasibility.
4. How should the unopened bottle be stored to maintain its shelf life?
Store the unopened AcroSeal® bottle in a cool, dry place, preferably under refrigeration (2–8°C). Keep it tightly sealed and away from direct sunlight or heat sources. The inert atmosphere inside the bottle helps preserve stability, but prolonged storage may still lead to gradual decomposition. Use within the recommended shelf life for optimal performance.
5. What are the signs of decomposition in this Grignard reagent?
Decomposition is often indicated by a cloudy or discolored solution, gas evolution, or the formation of a precipitate. A sharp, pungent odor may also develop due to the release of diethyl ether or hydrolysis products. If any of these signs are observed, do not use the reagent, as decomposed Grignard reagents can lead to unpredictable reactions or reduced yields.
