(4-Bromo-2-fluorophenoxy)acetic acid(CAS: 451-90-1)

(4-Bromo-2-fluorophenoxy)acetic acid is a white or off-white crystalline solid with a molecular weight of approximately 281.04 g/mol. It has a low water solubility and is slightly soluble in organic solvents. The compound is known for its reactivity towards nucleophilic substitution reactions and can undergo esterification and acylation. It is stable under normal conditions but should be stored away from moisture and oxidizing agents.

(4-Bromo-2-fluorophenoxy)acetic acid is typically synthesized via a multi-step process involving bromination of 2-fluorophenol followed by esterification. Commonly, a Grignard reagent or a bromoalkane is used as the brominating agent, and acetic anhydride is employed for esterification. The yield is generally around 70-80%, and the reaction is monitored using chromatography.

(4-Bromo-2-fluorophenoxy)acetic acid is used in the pharmaceutical industry for the synthesis of certain medicinal compounds. It also finds applications in the production of sensors and as a precursor in semiconductor manufacturing. Its reactivity makes it useful in polymer synthesis and as a starting material for various organic transformations.

When handling (4-Bromo-2-fluorophenoxy)acetic acid, appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat should be worn. This compound should be used in a well-ventilated area or a fume hood due to its potential to release toxic vapors. Proper storage is necessary to avoid contact with moisture and oxidizing agents. In case of a spill, it should be immediately cleaned up using appropriate absorbents and the site should be thoroughly rinsed with water. Always refer to the Safety Data Sheet (SDS) for detailed handling instructions.