Abstract
The reaction of lithium ferrocenyl- or ruthenocenylacetylide and MnBr(CO) 5 at low temperature gave the corresponding Mn(I) metallocenylacetylide complex in a moderate yield. In the presence of excess methyllithium, (tetracarbonyl)(1-ferrocenyl-buten-3-one-1-η 1, O) manganese and 4,6-diferrocenyll-α-pyrone were isolated, in addition to the Mn(I) ferrocenylacetylide complex. The former was also obtained in the reaction of MnMe(CO) 5 with FcCCH. The structures these two complexes were determined by a single crystal X-ray analysis.
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