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Comprehensive Overview of 1-Ethynyl-2-fluoro-4-methylbenzene (CAS No. 928304-42-1): Properties, Applications, and Industry Insights

1-Ethynyl-2-fluoro-4-methylbenzene (CAS No. 928304-42-1) is a fluorinated aromatic compound that has garnered significant attention in pharmaceutical and materials science research. This fluoro-substituted benzene derivative is characterized by its unique molecular structure, combining an ethynyl group, a fluorine atom, and a methyl group on a benzene ring. Such structural features make it a valuable building block in organic synthesis, particularly for the development of advanced materials and bioactive molecules.

The compound's CAS number 928304-42-1 serves as a critical identifier in chemical databases, ensuring precise tracking in regulatory and research contexts. Researchers often search for "1-Ethynyl-2-fluoro-4-methylbenzene synthesis" or "928304-42-1 applications," reflecting growing interest in its synthetic utility. Recent studies highlight its role in click chemistry reactions, where the ethynyl group enables efficient cycloadditions for drug discovery pipelines. This aligns with the broader industry trend toward modular molecular design.

From a physicochemical perspective, 1-Ethynyl-2-fluoro-4-methylbenzene exhibits notable stability under ambient conditions, with its fluorine atom influencing both electronic distribution and metabolic resistance – a property highly valued in medicinal chemistry optimization. Analytical techniques like NMR spectroscopy and mass spectrometry confirm its purity, while computational modeling predicts its reactivity patterns, addressing common search queries such as "fluorobenzene derivatives spectral data."

In material science applications, this compound contributes to developing organic electronic materials, particularly in designing fluorinated molecular semiconductors. Its structural motif appears in patents for OLED components, responding to market demands for energy-efficient displays. Sustainability-focused researchers also investigate its potential in green chemistry protocols, with optimization of solvent-free reactions being a trending topic in academic publications.

Quality control protocols for CAS 928304-42-1 emphasize HPLC purity verification, with commercial suppliers typically providing ≥98% pure material. Storage recommendations include inert atmosphere protection to maintain the integrity of the ethynyl moiety, a detail frequently queried in technical forums. The compound's structure-activity relationships continue to be explored through structure-property relationship (SPR) studies, particularly for fluorine-containing pharmacophores in kinase inhibitor development.

Emerging research directions include the incorporation of 1-Ethynyl-2-fluoro-4-methylbenzene into metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), where its rigid structure and functional groups enable precise porosity control. This application addresses the booming interest in molecular sieves for gas storage and separation technologies. Additionally, its derivatives show promise in fluorescence-based sensors, capitalizing on the fluorine atom's electronic effects to tune emission properties.

Regulatory compliance documentation for this compound emphasizes proper handling procedures, though it falls outside restricted substance lists. Safety data sheets provide guidance on personal protective equipment (PPE), with particular attention to standard organic chemical handling practices. Environmental fate studies indicate moderate persistence, prompting development of biodegradable analogs in line with green chemistry principles.

The commercial availability of 928304-42-1 through specialty chemical suppliers has expanded in recent years, with pricing reflecting its high purity grade requirements. Technical bulletins often highlight its utility in cross-coupling reactions, particularly Sonogashira and Suzuki-Miyaura couplings, making it relevant to researchers investigating palladium-catalyzed transformations. These applications respond to frequent search trends regarding fluorinated coupling partners in synthetic methodology development.

Future prospects for 1-Ethynyl-2-fluoro-4-methylbenzene include potential applications in proteolysis targeting chimeras (PROTACs) design, where its compact structure could serve as a linker component. The pharmaceutical industry's growing investment in targeted protein degradation technologies may drive increased demand for such specialized building blocks. Concurrently, materials scientists continue to explore its incorporation into advanced polymer systems with tailored dielectric properties.

Academic and industrial researchers frequently collaborate to map the full potential of this compound, with recent conference presentations highlighting novel multi-component reactions utilizing its unique functionality. Patent analysis reveals steady growth in applications involving CAS 928304-42-1, particularly in electronic material compositions and pharmaceutical intermediates. These developments position the compound as a versatile tool in modern molecular design across multiple disciplines.

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