2-Bromo-5-methoxybenzoic acid(CAS: 22921-68-2)

2-Bromo-5-methoxybenzoic acid is a crystalline solid at room temperature. Its molecular weight is approximately 260.04 g/mol. It has a melting point of 159-160°C and is slightly soluble in water. The compound is reactive towards nucleophiles and can undergo bromination and methoxylation reactions. It is not flammable but can react with strong bases or reducing agents.

2-Bromo-5-methoxybenzoic acid can be synthesized by bromination of 5-methoxybenzoic acid followed by reagent exchange with bromine. The reaction is typically carried out in the presence of a phase-transfer catalyst. The yield is around 85-90%, and the final product is isolated by recrystallization from ethanol or acetone.

2-Bromo-5-methoxybenzoic acid is used in the pharmaceutical industry as a precursor for the synthesis of certain drugs. It is also utilized in the manufacturing of organic pigments, sensors, and as a component in some polymer synthesis processes. Its reactivity makes it useful in various chemical transformations.

When handling 2-Bromo-5-methoxybenzoic acid, it is important to wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work should be conducted in a well-ventilated area or a fume hood to avoid exposure to vapors. Spills should be handled according to a safety data sheet (SDS) and disposed of properly. The compound is not flammable but can react with strong bases or reducing agents, so care should be taken to avoid these conditions.