• 1. Emerging enantiomeric resolution materials with homochiral nano-fabrications
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• 2. Exchangeability of amino acid residues with similar physicochemical properties in coiled-coil interactions?
  Guiying Zhang,Maosheng Cheng,Yanni Li,Keliang Liu,Lifeng Cai Chem. Commun., 2013,49, 11086-11088
• 3. Elusive 2-aminofuran Diels–Alder substrates for a straightforward synthesis of polysubstituted anilines?
  Ana G. Neo,Ana Bornadiego,Jesús Díaz,Stefano Marcaccini,Carlos F. Marcos Org. Biomol. Chem., 2013,11, 6546-6555
• 4. Empowering microfluidics by micro-3D printing and solution-based mineral coating?
  Hongxia Li,Aikifa Raza,Qiaoyu Ge,Jin-You Lu,TieJun Zhang Soft Matter, 2020,16, 6841-6849
• 5. Enabling high-throughput single-animal gene-expression studies with molecular and micro-scale technologies
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Potassium Trifluoro(2-fluoropyrimidin-5-yl)borate (CAS No. 1245906-69-7): A Versatile Boron-Based Reagent in Modern Organic Synthesis

In the rapidly evolving field of organic synthesis, potassium trifluoro(2-fluoropyrimidin-5-yl)borate (CAS No. 1245906-69-7) has emerged as a valuable boron-based reagent for constructing complex molecular architectures. This fluorinated pyrimidine borate compound belongs to the growing family of heteroaryl borates, which are increasingly sought after in pharmaceutical research and materials science due to their unique reactivity profiles.

The molecular structure of potassium trifluoro(2-fluoropyrimidin-5-yl)borate combines two important features: a fluoropyrimidine moiety and a trifluoroborate group. This combination makes it particularly useful in Suzuki-Miyaura cross-coupling reactions, one of the most widely applied transformations in modern drug discovery. Recent studies highlight its effectiveness in creating fluorinated biaryl systems, which are prevalent in many FDA-approved drugs targeting various therapeutic areas.

From a synthetic chemistry perspective, the 2-fluoropyrimidin-5-yl component offers several advantages. The fluorine atom at the 2-position enhances the electron-deficient character of the pyrimidine ring, making it more reactive in nucleophilic aromatic substitution reactions. Meanwhile, the trifluoroborate group provides excellent stability to the reagent while maintaining good reactivity in cross-coupling applications. This balance between stability and reactivity makes potassium trifluoro(2-fluoropyrimidin-5-yl)borate particularly valuable for multi-step synthetic sequences.

In pharmaceutical applications, compounds containing the fluoropyrimidine scaffold have shown significant biological activity. The introduction of potassium trifluoro(2-fluoropyrimidin-5-yl)borate into drug discovery programs enables efficient access to novel fluorinated heterocycles, which often demonstrate improved metabolic stability and membrane permeability compared to their non-fluorinated counterparts. These properties are particularly valuable in the development of CNS-targeting drugs and kinase inhibitors.

The growing demand for fluorinated building blocks in medicinal chemistry has driven significant interest in potassium trifluoro(2-fluoropyrimidin-5-yl)borate. Researchers frequently search for information about its synthetic applications, handling precautions, and commercial availability. Many synthetic chemists are particularly interested in its performance compared to related pyrimidine boronic acids and boronate esters in various coupling reactions.

From a materials science perspective, the 2-fluoropyrimidine unit in potassium trifluoro(2-fluoropyrimidin-5-yl)borate offers interesting possibilities for creating π-conjugated systems with tailored electronic properties. This has led to its exploration in the development of organic electronic materials, particularly for applications in OLED technology and organic photovoltaics. The fluorine substitution pattern can significantly influence the material's charge transport characteristics and solid-state packing.

The stability of potassium trifluoro(2-fluoropyrimidin-5-yl)borate makes it particularly attractive for industrial applications. Unlike some boronic acid derivatives that may suffer from protodeboronation or oxidation, the trifluoroborate form offers enhanced shelf life and handling characteristics. This stability advantage has made it a preferred choice for many process chemistry applications where reagent consistency is crucial.

Recent advances in continuous flow chemistry have further increased the utility of potassium trifluoro(2-fluoropyrimidin-5-yl)borate. Its good solubility profile and consistent reactivity make it well-suited for flow-based synthesis platforms, which are becoming increasingly important in both pharmaceutical and fine chemical production. The compound's performance in high-throughput screening of coupling reactions has been particularly noteworthy.

For researchers working with potassium trifluoro(2-fluoropyrimidin-5-yl)borate, proper storage conditions are essential to maintain its reactivity. The compound should be kept in a cool, dry environment, protected from moisture. While not particularly sensitive to air, prolonged exposure to atmospheric conditions should be avoided to prevent gradual decomposition. These handling characteristics are similar to other potassium trifluoroborate salts used in synthetic chemistry.

The commercial availability of potassium trifluoro(2-fluoropyrimidin-5-yl)borate has improved significantly in recent years, reflecting its growing importance in synthetic chemistry. Several specialty chemical suppliers now offer this reagent in various quantities, from milligram-scale for discovery research to kilogram quantities for process development. This increased accessibility has contributed to its broader adoption across both academic and industrial laboratories.

Looking to the future, potassium trifluoro(2-fluoropyrimidin-5-yl)borate is likely to play an increasingly important role in the development of fluorinated pharmaceuticals and advanced materials. As the pharmaceutical industry continues to explore the benefits of fluorination in drug design, and as materials scientists seek new ways to tune electronic properties of organic semiconductors, the demand for specialized fluorinated building blocks like this compound is expected to grow substantially.

In conclusion, potassium trifluoro(2-fluoropyrimidin-5-yl)borate (CAS No. 1245906-69-7) represents a valuable addition to the synthetic chemist's toolbox. Its unique combination of a fluoropyrimidine scaffold with a stable trifluoroborate group enables efficient construction of complex molecular architectures with potential applications ranging from drug discovery to materials science. As research continues to uncover new applications for fluorinated heterocycles, the importance of this and related boron-based reagents is likely to increase further.

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