What is a Phenylacetylene (C₈H₆) ?

Phenylacetylene (C₈H₆) is an organic compound consisting of a phenyl group (benzene ring) attached to an ethynyl group (−C≡CH). It belongs to the class of aromatic alkynes and appears as a colorless liquid with a mild aromatic odor. Phenylacetylene is widely used in organic synthesis, especially in coupling reactions such as the Sonogashira reaction, and as a precursor for polymers and advanced materials. Its π-conjugated structure makes it useful in materials science, including electronic and optical applications.

Due to its high reactivity in the presence of metal catalysts, phenylacetylene is a valuable synthetic intermediate for producing various derivatives.

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