Pyrazolo[1,5-a]pyridin-2(1H)-one(CAS: 59942-87-9)

Pyrazolo[1,5-a]pyridin-2(1H)-one is a crystalline solid with a molecular weight of 176.14 g/mol. It has a high solubility in organic solvents like DMSO and ethanol. It is moderately reactive towards nucleophiles and electrophiles. The compound exhibits good thermal stability up to 200°C.

Pyrazolo[1,5-a]pyridin-2(1H)-one is commonly synthesized via a multi-step reaction starting from pyridine and pyrazole. The process involves condensation followed by ring closure, using catalysts like palladium(II) acetate for high selectivity and yield. The overall procedure requires careful temperature control and solvent selection.

Pyrazolo[1,5-a]pyridin-2(1H)-one is used in the pharmaceutical industry for developing potential drug candidates due to its biological activity. It also finds applications in the semiconductor industry as a precursor for organic electronic materials. Additionally, it is explored in sensor technology for its unique chemical properties.

When handling Pyrazolo[1,5-a]pyridin-2(1H)-one, it is essential to wear protective clothing, including gloves and goggles. Work in a well-ventilated area or fume hood to minimize inhalation. Spills should be cleaned up using absorbent materials and proper disposal methods. Refer to the Safety Data Sheet (SDS) for detailed safety information.