Chemistry Letters, Vol.35, No.1, 122-123, 2006
Reaction of zirconocene-alkyne complexes with Mo(CO)(6)
The reaction of zirconocene-alkyne complexes prepared from Cp2ZrCl2 with BuLi and an alkyne with MO(CO)6 yielded 2,3-disubstituted-5-ethylcyclopentenone derivatives by incorporation of once eliminated butene with excellent regioselectivity.