The µ-alkylidene complex (1) W2(CO)9(C5H8) reacts with but-2-yne to give a new chain-carrier complex (2) by insertion of the monomer into the µ-alkylidene bridge and complex (1) catalytically reacts with terminal alkynes to give polyalkynes in good yields.
J. Levisalles, F. Rose-Munch, H. Rudler, J. Daran, Y. Dromzee, Y. Jeannin, D. Ades and M. Fontanille, J. Chem. Soc., Chem. Commun., 1981, 1055 DOI: 10.1039/C39810001055
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