Potassium Isopropenyltrifluoroborate丨CAS 395083-14-4

Potassium isopropenyltrifluoroborate is a valuable organoboron compound widely used in synthetic and medicinal chemistry. Its stability, ease of handling, and compatibility with modern cross-coupling methods make it an attractive reagent for constructing carbon–carbon bonds. It is especially prominent in Suzuki–Miyaura coupling reactions, where it serves as an efficient and reliable building block to introduce isopropenyl groups into aromatic or heteroaromatic systems. This reactivity enables the synthesis of advanced intermediates and active pharmaceutical ingredients (APIs). Beyond pharmaceuticals, it finds applications in the development of agrochemicals, specialty polymers, and fine chemicals, where the incorporation of isopropenyl moieties enhances structural diversity and functionality. Its solid, air-stable form also makes it practical for laboratory and industrial-scale processes, offering a safer alternative to more reactive or unstable organoboron reagents.

The benefits of potassium isopropenyltrifluoroborate stem from its unique balance of reactivity and stability. Unlike boronic acids or esters, it is resistant to oxidation, hydrolysis, and air degradation, allowing for convenient storage and transport. Its controlled reactivity in cross-coupling reactions ensures high yields and reduced byproduct formation, improving efficiency in multi-step syntheses. The compound supports modular design in medicinal and material chemistry, giving researchers flexibility to introduce desired structural motifs with precision. Moreover, its safety profile and predictable performance contribute to cost-effectiveness and reproducibility, both in academic and industrial settings. This makes it a reliable choice for chemists developing new pharmaceuticals, agrochemicals, and functional materials.