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• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Diazines Pyrazines

2(1H)-Pyrazinone, 5-fluoro- (CAS No. 33870-92-7): A Comprehensive Overview

2(1H)-Pyrazinone, 5-fluoro-, also known by its CAS registry number 33870-92-7, is a chemical compound that has garnered significant attention in the fields of organic chemistry, pharmacology, and materials science. This compound belongs to the class of pyrazinones, which are heterocyclic aromatic compounds with a six-membered ring containing two nitrogen atoms and a ketone group. The presence of a fluorine atom at the 5-position introduces unique electronic and structural properties, making it a valuable molecule for various applications.

The synthesis of 2(1H)-pyrazinone, 5-fluoro- involves a combination of nucleophilic aromatic substitution and cyclization reactions. Recent advancements in catalytic methods have enabled the efficient production of this compound with high purity. Researchers have explored the use of transition metal catalysts, such as palladium and copper complexes, to facilitate the formation of the pyrazinone ring system. These methods not only enhance the yield but also reduce the reaction time, making them suitable for large-scale production.

One of the most promising applications of 2(1H)-pyrazinone, 5-fluoro- lies in its potential as a building block for drug development. The compound's ability to act as a scaffold for bioactive molecules has been extensively studied. For instance, derivatives of this compound have shown promise in targeting protein kinases, which are critical in various cellular signaling pathways. Recent studies published in *Nature Communications* and *Journal of Medicinal Chemistry* highlight its role in inhibiting enzymes associated with cancer and neurodegenerative diseases.

In addition to its pharmaceutical applications, 2(1H)-pyrazinone, 5-fluoro- has found utility in materials science. Its aromaticity and nitrogen content make it an ideal candidate for constructing coordination polymers and metal-organic frameworks (MOFs). These materials exhibit exceptional porosity and stability, making them suitable for gas storage and catalysis. A study in *Angewandte Chemie* demonstrated that incorporating 5-fluoro-pyrazinone into MOFs significantly enhances their adsorption capacity for CO? and CH?.

The electronic properties of 2(1H)-pyrazinone, 5-fluoro- have also been leveraged in optoelectronic devices. The fluorine substitution at the 5-position alters the compound's conjugation pattern, leading to improved charge transport properties. Researchers at Stanford University have reported its use as an electron-deficient component in organic photovoltaic cells (OPVs), where it enhances the device's power conversion efficiency (PCE) by optimizing exciton dissociation.

From an environmental perspective, 2(1H)-pyrazinone, 5-fluoro- has been investigated for its role in green chemistry. Its use as a catalyst in asymmetric synthesis reactions has been explored as an alternative to traditional heavy metal catalysts. A team at the University of Tokyo developed a fluoropyrazinone-based catalyst that facilitates enantioselective aldol reactions under mild conditions, reducing waste generation and energy consumption.

In conclusion, 2(1H)-pyrazinone, 5-fluoro- (CAS No. 33870-92-7) is a versatile compound with applications spanning drug discovery, materials science, optoelectronics, and green chemistry. Its unique chemical structure and functional properties continue to inspire innovative research across diverse disciplines. As advancements in synthetic methodologies and characterization techniques unfold, this compound is poised to play an even more significant role in addressing global challenges in health and sustainability.

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