Metallorganische Lewissäuren, V [1] Reaktionen von Carbonyl-η5-cyclopentadienylmolybdä ntetrafluoroboraten (η5-C5H5)MO(CO)2(L)FBF3 (L=CO, PR3) mit Phosphanen und Alkenen / Organometallic Lewis Acids, V [1] Reactions of Carbonyl-η5-cyclopentadienyl Molybdenum Tetrafluoroborates (η5-C5H5)Mo(CO)2(L)FBF3 (L = CO, PR3) with Phosphanes and Alkenes

Abstract

Abstract Tetrafluoroborate complexes (η5 -C5H5)Mo(CO)2(PR3)FBF3 have been prepared by hydride abstraction from the corresponding hydrido compounds using Ph3CBF4. The tetrafluoroborate ligand in (η5 -C5H5)Mo(CO)2(L)FBF3 (L = CO, PR3) is easily sub-stituted by phosphanes, cis-and trans-butene(2), a-acetamidocinnamic acid and buta-diene. Nucleophilic addition of HNMe2 to the butadiene complex [(η5 -C5H5)Mo(CO)3 butadiene)]+BF4 - gives the β-aminoacyl chelate compound 7.