arylalkyne
An arylalkyne is an alkyne compound in which one or more of the alkyne carbons bears an aryl substituent. The simplest example is phenylacetylene (phenyl–C≡C–H), a terminal arylalkyne. Internal arylalkynes include diaryl acetylenes such as diphenylacetylene (Ph–C≡C–Ph) and aryl–alkyl variants (Ar–C≡C–R). The presence of an aryl group commonly extends the π-conjugation of the system and influences reactivity and physical properties.
Classification among arylalkynes can be by substitution pattern. Terminal arylalkynes have a hydrogen on one alkyne
Synthesis of arylalkynes is dominated by transition-metal-catalyzed coupling methods. The Sonogashira reaction—coupling a terminal alkyne with
Applications of arylalkynes span materials science and synthesis. They serve as building blocks for conjugated polymers