558456-35-2Relevant academic research and scientific papers
A simple synthesis of tetraethynylethenes and representative molecular structures of some dicobalt derivatives
Koentjoro, Olivia F.,Zuber, Philipp,Puschmann, Horst,Goeta, Andres E.,Howard, Judith A.K.,Low, Paul J.
, p. 178 - 187 (2007/10/03)
Palladium-copper catalysed cross-coupling reactions of tetracholoroethene with terminal acetylenes RC≡CH (R = SiMe3, C6H5, C6H4CN-4) in refluxing triethylamine afford the corresponding tetraethynylethenes in 30-60% isolated yields. The reaction of 1,6- bis(trimethylsilyl)-3,4-bis (trimethylsilylethynyl)-hex-3-ene-1,5-diyne with [Co2(CO)6(L2)] [L2 = (CO)2 or μ-dppm] affords complexes in which one or two (trans) acetylene moieties are coordinated by a dicobalt fragment.
