“…A wide variety of classical as well as new approaches for incorporating alkynyl moieties into organic framework (formation of Csp–Csp, Csp–Csp 2 , Csp–Csp 3 , etc bonds) have appeared in the literature . This includes, but is not limited to, Hay, , Eglinton-Galbraith, Cadiot-Chodkiewicz, Sonogashira, Stille, Negishi, Kumada-Corriu, Grignard, Fritsch-Buttenberg-Wiechell (FBW) rearrangement, and others. − Scheme depicts some well-known protocols developed for the synthesis of symmetrical and asymmetrical alkynyl compounds starting from terminal alkynes. Classically, to introduce ethynyl moieties as substituents onto an aliphatic chain/aromatic ring and to synthesize a polymeric material, a sequence of metal-catalyzed Sonogashira, Stille, Hagihara, Negishi, or Kumada coupling reactions are used.…”