Reaction of lithium phenylacetylide with metal carbonyl

Ancillary ligand electro-activity effects towards phenyl acetylene homocoupling reaction by a nickel(ii) complex of a non-innocent O-amino phenol ligand: a mechanistic insight

“…scientist's effort led to improve the reaction yield, kinetic of the reaction, loading of catalyst, decreasing the amount of waste material such as metal and organic waste and by-products produced by traditional methods. [43][44][45]47,48,55,65,66 In our contribution in these efforts, we have been tried to develop innovate and greener protocols. We haven't used any reducing agents or additives due to the presence of a redox active non innocent ligand which plays a crucial role in switching the oxidation state of complex and regenerate it in the time of oxidative addition/reductive elimination processes.…”

“…Nickel-catalyzed homocoupling reaction was rst pioneered by Rhee and co-workers. 55 Homocoupling reaction generally follows an oxidative addition, transmetallation and reductive elimination catalytic cycle in which the use of electron-donating ligands helps the reaction and can promote rst and last steps. For the Ni-catalyzed C-C homocoupling reactions, the Ni(0) is generally considered as catalytically active species and the mechanism follows a Ni(0)-Ni(II) catalytic cycle.…”

Acetylenkupplungen: eine leistungsfähige Methode für den Aufbau von Molekülen

“…[110] Auch von anderen Übergangsmetallen sind Alkinkomplexe bekannt, die über interessante Kupplungseigenschaften verfügen. [111] 2748 Angew. [111] 2748 Angew.…”