4-Methyl-3-(trifluoromethyl)benzoic acid(CAS: 261952-01-6)

4-Methyl-3-(trifluoromethyl)benzoic acid is a solid with a crystalline form. It has a molecular weight of 228.11 g/mol. This compound is poorly soluble in water but soluble in organic solvents like acetone and dichloromethane. It is reactive and can undergo typical carboxylic acid reactions such as esterification and acylation.

4-Methyl-3-(trifluoromethyl)benzoic acid can be synthesized through the Friedel-Crafts alkylation of 3-(trifluoromethyl)benzoic acid with methyl iodide. This reaction requires a Lewis acid catalyst such as aluminum chloride and typically provides good yield and selectivity. Other methods include direct synthesis from 3-(trifluoromethyl)benzoic anhydride with methylamine.

4-Methyl-3-(trifluoromethyl)benzoic acid is used in the pharmaceutical industry for the synthesis of certain medicinal compounds. It is also used in the polymer industry as a monomer for specialty polymers. Additionally, it has applications in the electronics industry, particularly in the production of thin-film transistors and other semiconductor devices.

When handling 4-Methyl-3-(trifluoromethyl)benzoic acid, appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat should be worn. It should be stored in a fume hood to minimize exposure. Spills should be cleaned up using appropriate safety procedures and materials. Always refer to the safety data sheet (SDS) for detailed handling instructions and emergency procedures.