From the Pauson-Khand products 1 and 5 as starting materials, the novel cyclopentadiene compounds 3 and 7 were prepared efficiently. Metalation of 3 with Mn2(CO)10 resulted in a new bicyclic pentadienylmanganese compound, 4. Reaction of 7 with M2(CO)10 (M = Mn, Re) and Fe2(CO)9 gave the corresponding organometallic compounds 9–12. 7 also reacts with KH to produce the cyclopentadienide anion 8, which reacts with M(CO)3(CH3CN)3 (M = Cr, W), Mo(CO)6, and FeCl3 to yield compounds 13–16. The molecular structures of 9 and 16 have been determined.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry