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• 2. Ester-directed orthogonal dual C–H activation and ortho aryl C–H alkenylation via distal weak coordination?
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• Solvents and Organic Chemicals Organic Compounds Benzenoids Benzene and substituted derivatives Halobenzenes Fluorobenzenes

Introduction to 3-(4-fluorophenyl)prop-2-ynoic acid (CAS No. 706-06-9)

3-(4-fluorophenyl)prop-2-ynoic acid, identified by the Chemical Abstracts Service (CAS) number 706-06-9, is a fluorinated aromatic compound that has garnered significant attention in the field of pharmaceutical and chemical research. This compound belongs to the class of propynoic acids, characterized by the presence of a propargyl group (-C≡CH) attached to a carboxylic acid moiety. The incorporation of a 4-fluorophenyl substituent introduces unique electronic and steric properties, making it a valuable scaffold for the development of novel bioactive molecules.

The structural motif of 3-(4-fluorophenyl)prop-2-ynoic acid positions it as a potential candidate for various applications, particularly in medicinal chemistry and synthetic organic chemistry. The fluorine atom at the para position of the phenyl ring enhances lipophilicity and metabolic stability, which are critical factors in drug design. Additionally, the propargyl group provides a versatile handle for further functionalization, enabling the synthesis of more complex derivatives.

In recent years, there has been growing interest in fluorinated compounds due to their enhanced biological activity and improved pharmacokinetic profiles. Studies have demonstrated that fluorine substitution can modulate enzyme inhibition, receptor binding affinity, and overall drug efficacy. For instance, fluorinated aromatic acids have been explored as intermediates in the synthesis of nonsteroidal anti-inflammatory drugs (NSAIDs), antiviral agents, and anticancer therapeutics.

3-(4-fluorophenyl)prop-2-ynoic acid has been utilized in several synthetic pathways to develop novel pharmacophores. Its propynoic acid core can undergo cross-coupling reactions, such as Suzuki-Miyaura or Sonogashira couplings, to introduce additional aryl or vinyl groups. These reactions are pivotal in constructing complex molecular architectures with tailored biological properties. Furthermore, the carboxylic acid functionality allows for amide bond formation, enabling the attachment of various pharmacologically relevant moieties.

One notable application of 3-(4-fluorophenyl)prop-2-ynoic acid is in the development of kinase inhibitors. Kinases are key enzymes involved in signal transduction pathways and are frequently targeted in oncology and inflammatory disease therapies. The fluorine atom's ability to increase binding affinity has been leveraged to design potent inhibitors with improved selectivity and duration of action. Preclinical studies have shown promising results using derivatives of this compound framework in inhibiting aberrantly activated kinases associated with cancer progression.

The synthesis of 3-(4-fluorophenyl)prop-2-ynoic acid typically involves multi-step organic transformations starting from commercially available precursors like 4-fluorobenzaldehyde and propargyl bromide. Key steps include condensation reactions to form the propargylated aromatic compound followed by carboxylation to introduce the acidic functionality. Advances in catalytic methods have enabled more efficient and scalable production processes, making this compound more accessible for research applications.

From a computational chemistry perspective, 3-(4-fluorophenyl)prop-2-ynoic acid has been subjected to molecular modeling studies to elucidate its interactions with biological targets. Quantum mechanical calculations have helped predict binding affinities and identify key hydrogen bonding networks essential for drug-receptor interactions. These insights are crucial for rational drug design and optimizing lead compounds towards clinical candidates.

The role of fluorinated propynoic acids extends beyond pharmaceuticals into materials science and agrochemicals. For example, derivatives of this class have been investigated as building blocks for liquid crystals and organic semiconductors due to their rigid planar structure and electronic tunability. In agrochemistry, fluorinated compounds exhibit enhanced pesticidal activity by disrupting metabolic pathways in pests while maintaining low toxicity to non-target organisms.

In conclusion, 3-(4-fluorophenyl)prop-2-ynoic acid (CAS No. 706-06-9) represents a structurally interesting and biologically relevant compound with broad utility across multiple domains of chemical research. Its unique combination of electronic properties, synthetic versatility, and potential therapeutic applications positions it as a valuable asset for both academic investigations and industrial development programs aimed at discovering novel bioactive molecules.

• 1736-31-8(2-Propynoic acid,3-(4-fluorophenyl)-, ethyl ester)
• 704-97-2(IFLAB-BB F2108-0142)
• 7063-23-2(Sodium 3-phenylpropiolate)
• 157398-90-8(2-Propynoic acid, 3-phenyl-, lead(4+) salt (4:1))
• 2227-58-9(3-(4-methylphenyl)prop-2-ynoic Acid)
• 637-44-5(Phenylpropiolic acid)
• 61794-54-5(2-Propynoic acid, 3-(pentafluorophenyl)-)
• 63704-44-9(Potassium 3-phenylpropiolate)
• 221148-38-5(2-Propynoic acid, 3-(3-fluorophenyl)-, methyl ester)
• 80151-28-6(3-(4-Fluoro-Phenyl)-Prop-2-Yn-1-Ol)