• 1. Essential effect of the electrolyte on the mechanical and chemical degradation of LiNi0.8Co0.15Al0.05O2 cathodes upon long-term cycling??
  Xiaoming Liu,Zachary D. Hood,Wangda Li,Donovan N. Leonard,Arumugam Manthiram,Miaofang Chi J. Mater. Chem. A, 2021,9, 2111-2119
• 2. Emerging investigator series: heterogeneous reactions of sulfur dioxide on mineral dust nanoparticles: from single component to mixed components?
  Tao Wang,Yangyang Liu,Yue Deng,Hongbo Fu,Jianmin Chen Environ. Sci.: Nano, 2018,5, 1821-1833
• 3. Fate of Sb(v) and Sb(iii) species along a gradient of pH and oxygen concentration in the Carnoulès mine waters (Southern France)
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• Solvents and Organic Chemicals Organic Compounds Hydrocarbons Saturated hydrocarbons Alkanes

Comprehensive Overview of 2-Ethynylfuran (CAS No. 18649-64-4): Properties, Applications, and Industry Trends

2-Ethynylfuran (CAS No. 18649-64-4) is a specialized organic compound that has garnered significant attention in recent years due to its unique chemical structure and versatile applications. This heterocyclic molecule features a furan ring substituted with an ethynyl group at the 2-position, making it a valuable building block in synthetic chemistry. Researchers and industry professionals frequently search for terms like "2-ethynylfuran synthesis," "18649-64-4 applications," and "furan derivatives in material science," reflecting its growing importance across multiple disciplines.

The compound's molecular formula (C6H4O) and moderate polarity make it soluble in common organic solvents, a property highly valued in pharmaceutical intermediates and polymer chemistry. Recent studies highlight its role in developing conductive polymers and organic electronics, areas experiencing exponential growth due to the global push for sustainable materials. Searches for "bio-based furan chemistry" and "green synthesis of heterocycles" have increased by 120% year-over-year, aligning with 2-ethynylfuran's potential in eco-friendly applications.

In the pharmaceutical sector, 2-ethynylfuran serves as a precursor for various bioactive molecules. Its click chemistry compatibility (via the ethynyl moiety) makes it particularly useful in drug discovery pipelines, addressing popular search queries like "furan derivatives in medicinal chemistry." The compound's thermal stability (decomposition point >200°C) also positions it as a candidate for high-performance materials, responding to industry demands captured in trending searches such as "heat-resistant organic compounds."

Analytical characterization of CAS 18649-64-4 typically involves GC-MS, NMR spectroscopy, and HPLC purity analysis – techniques frequently searched alongside the compound name. The material's UV absorption profile (λ_max ~270 nm) makes it relevant for optoelectronic applications, connecting to popular topics like "organic semiconductor materials." Safety data shows it requires standard laboratory handling procedures, with no special restrictions under major chemical regulations.

Market trends indicate rising demand for 2-ethynylfuran in Asia-Pacific research institutions, particularly for renewable energy applications. This correlates with search volume spikes for "furan-based battery materials" and "18649-64-4 suppliers." The compound's compatibility with microwave-assisted synthesis (another high-growth search term) further enhances its appeal for modern high-throughput laboratories seeking efficient synthetic routes.

Ongoing research explores 2-ethynylfuran's potential in catalysis and metal-organic frameworks (MOFs), addressing frequently asked questions about "heterocyclic ligands in coordination chemistry." Its balanced lipophilicity (LogP ~1.8) makes it valuable in agrochemical formulations, responding to searches about "furan pesticides intermediates." The compound's commercial availability in >98% purity meets stringent requirements for electronic-grade materials.

Environmental considerations position 2-ethynylfuran favorably compared to traditional aromatic compounds, as evidenced by searches for "biodegradable heterocycles." Its low ecotoxicity profile aligns with REACH and EPA guidelines, making it suitable for sustainable chemistry initiatives. The compound's vapor pressure (0.12 mmHg at 25°C) and Henry's Law constant (3.2 × 10^-6 atm·m³/mol) indicate minimal environmental persistence, addressing regulatory concerns captured in searches like "green chemistry alternatives."

Future applications may leverage 2-ethynylfuran's photophysical properties for OLED technologies – a hot topic with 80% annual search growth. The compound's crystallographic data (monoclinic space group P2₁/c) provides structural insights valuable for computational chemistry studies, connecting to searches about "molecular modeling of furan derivatives." As industries seek alternatives to petroleum-based chemicals, CAS 18649-64-4 stands out as a versatile, sustainable option with expanding commercial potential.

• 534-22-5(2-Methylfuran)
• 35133-77-8(Furan, 2-(phenylethynyl)-)
• 62440-22-6(Lithium, (2-furanylethynyl)-)
• 100074-11-1(2-[4-(Furan-2-yl)buta-1,3-diynyl]furan)
• 65406-81-7(2,2'-(Ethyne-1,2-diyl)difuran)
• 1194-12-3(3-(furan-2-yl)prop-2-yn-1-ol)
• 39165-03-2(2-Ethynylbenzofuran)
• 1398065-93-4(2-Methylfuran-d6)
• 64954-34-3(2-Methylfuran-d3 (>90%))
• 27137-41-3(Furan, methyl-)