Abstract
The cyclopentadienyl metal complexes [(η 5-C 5H 5)M(CO) n I] ( 1, M = Mo, n = 3; 2, M = W, n = 3; 3 , M = Ru, n = 2) react with tributyltin acetylides Bu 3Sn-CC-R ( 4, R = H; 5, R = Pr; 6, R = Ph ) in the presence of 5 mol% of [(CH 3CN) 2PdCl 2] to give the corresponding σ-alkynyl metal complexes [(η 5-C 5H 5)M(CO) n -CC-R] in good yield.
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