HYDROGENATION OF PENTYNES AND OF PENTADIENES CATALYSED BY Ru3(CO)12, Fe3(CO)12 AND MIXED METAL Ru-Fe DODECACARBONYLS SUPPORTED ON γ-Al2O3

Article abstract of DOI:10.1016/0022-328X(84)85057-3

Hydrogenation under mild conditions of 1- and 2-pentyne and of 1,3-cis- and 1,3-trans-pentadiene catalysed by Ru3(CO)12, FeRu2(CO)12, Fe2Ru(CO)12 and Fe3(CO)12 in toluene solutions or anchored on γ-Al2O3 has been studied.For all the systems examined, catalytic activity was highest for Ru3(CO)12-containing catalysts and lowest for Fe3(CO)12-containing ones.For mixed metal catalysts, activity decreased with increasing number of Fe atoms in the dodecacarbonyls.Anchorage of the clusters to γ-Al2O3 produced catalysts which were less active towards hydrogenation of 1- and 2-pentyne and more active towards hydrogenation of 1,3-cis- and 1,3-trans-pentadiene, but had no effect on product distribution.