3-(Trifluoromethyl)-1H-pyrazole-5-carboxylic acid(CAS: 129768-28-1)

3-(Trifluoromethyl)-1H-pyrazole-5-carboxylic acid is a crystalline solid with a molecular weight of approximately 249.11 g/mol. It is poorly soluble in water but has good solubility in organic solvents. The compound shows moderate acidity and is prone to nucleophilic substitution reactions. It is stable under normal conditions but may react with strong bases or reducing agents.

3-(Trifluoromethyl)-1H-pyrazole-5-carboxylic acid can be synthesized via the condensation of trifluoromethylated pyrazoles with carboxylic acids. Common methods involve using acyl chlorides or acid anhydrides as precursors. The reaction often requires a Lewis acid catalyst and is conducted in anhydrous conditions to improve yield and selectivity.

3-(Trifluoromethyl)-1H-pyrazole-5-carboxylic acid is utilized in the pharmaceutical industry for the synthesis of certain drugs. It also finds applications in the polymer industry as a precursor for functionalized polymers. Additionally, it is explored in the sensors and semiconductors sectors for its unique electronic properties.

When handling 3-(Trifluoromethyl)-1H-pyrazole-5-carboxylic acid, it is essential to use personal protective equipment such as gloves, safety goggles, and a lab coat. The compound should be stored in a cool, dry place away from strong acids and bases. In case of spill, ensure proper ventilation and collect the spill using appropriate absorbent materials. Always refer to the Safety Data Sheet (SDS) for detailed instructions.