The realm of organic synthesis is constantly seeking versatile building blocks that can facilitate complex molecular construction. 3-Chlorophenylacetylene, identified by its CAS number 766-83-6, is one such indispensable compound. Its unique structural features, including an activated alkyne moiety and a chlorine-substituted aromatic ring, render it a highly reactive and adaptable intermediate for a wide spectrum of chemical transformations. For research scientists and formulation chemists, understanding its properties and applications is key to leveraging its full potential.

Chemical Profile and Reactivity

3-Chlorophenylacetylene is characterized by its molecular formula C8H5Cl and a molecular weight of approximately 136.58 g/mol. As a liquid, typically appearing clear, colorless to yellow, with a boiling point of 178-179°C, it offers good solubility in common organic solvents. The electron-withdrawing nature of the chlorine atom influences the reactivity of the phenyl ring, while the terminal alkyne group is a prime site for various addition, substitution, and coupling reactions. This dual reactivity makes it a powerful tool for chemists aiming to construct intricate molecular architectures.

Key Applications in Synthesis

The utility of 3-Chlorophenylacetylene extends across several high-value sectors:

  • Pharmaceutical Intermediates: This compound is a critical precursor in the synthesis of numerous Active Pharmaceutical Ingredients (APIs). Its ability to participate in Sonogashira couplings, click chemistry, and other C-C bond forming reactions makes it ideal for creating complex drug scaffolds. Researchers looking to buy 3-chlorophenylacetylene for drug discovery often cite its reliability.
  • Material Science: In the field of advanced materials, 3-chlorophenylacetylene is employed in the synthesis of conjugated polymers and organic electronic materials, such as those used in Organic Light-Emitting Diodes (OLEDs) and organic photovoltaics. The incorporation of the aryl-alkyne unit can impart unique optoelectronic properties.
  • Agrochemicals: Similar to its role in pharmaceuticals, it can serve as an intermediate in the synthesis of specialized agrochemical compounds, contributing to the development of more effective crop protection solutions.
  • Specialty Organic Synthesis: Beyond these major applications, it is broadly used as a versatile building block in academic and industrial research for creating novel organic molecules with tailored properties.

Sourcing and Availability

For scientists and procurement specialists, identifying reliable manufacturers and suppliers is essential. When seeking to purchase 3-Chlorophenylacetylene, particularly from manufacturers in regions like China, it is advisable to look for those who emphasize product quality, consistent purity (97%min), and efficient delivery. Comparing the 3-chlorophenylacetylene price from various reputable suppliers can also be beneficial for budget management.

In essence, 3-Chlorophenylacetylene (CAS 766-83-6) is more than just a chemical; it's a gateway to innovation. Its strategic application in organic synthesis empowers chemists to push the boundaries of what's possible in developing life-saving medicines and next-generation materials.