2-Fluoro-5-(trifluoromethoxy)benzoic acid(CAS: 886497-85-4)

2-Fluoro-5-(trifluoromethoxy)benzoic acid is a crystalline solid with a high molecular weight. It has low water solubility and excellent solubility in organic solvents. The compound exhibits moderate reactivity, particularly in electrophilic aromatic substitution reactions. Its physical properties include a melting point of approximately 216-218°C and a molecular weight of around 287.12 g/mol.

2-Fluoro-5-(trifluoromethoxy)benzoic acid can be synthesized through a Fries rearrangement of 5-(trifluoromethoxy)benzyl trifluoromethanesulfonate with fluoroacetic anhydride. The process involves the use of a Lewis acid catalyst, such as aluminum trichloride, to promote the rearrangement. The yield is typically around 60-70%, and the method is selective for the desired product.

2-Fluoro-5-(trifluoromethoxy)benzoic acid is used in the pharmaceutical industry for the synthesis of medicinally active compounds. It is also applied in the polymer industry for the development of specialty polymers, and in the semiconductor industry for the fabrication of electronic materials. Additionally, it has potential applications in sensor technology.

When handling 2-Fluoro-5-(trifluoromethoxy)benzoic acid, it is essential to wear appropriate personal protective equipment (PPE), such as gloves, goggles, and a lab coat. Work should be conducted in a fume hood to minimize exposure. Spills should be cleaned up immediately using appropriate absorbents, and the area should be well-ventilated. Always consult the Safety Data Sheet (SDS) for specific handling and disposal recommendations.