Organoelement Compounds
Full Access
ChemInform Abstract: Formation of Diastereomeric Zirconiooxycarbene Complexes by Treatment of Bis(tert-butyl-Cp)2Zr(butadiene) with Hexacarbonyltungsten.
First published: August 30, 1988
Abstract
The equilibrium mixture of (I) with 5% of the s-trans isomer reacts with (II) to give the carbene complex (III).
ChemInform Abstract
The equilibrium mixture of (I) with 5% of the s-trans isomer reacts with (II) to give the carbene complex (III). The chiral central metallacyclic ring system and the chiral preferred conformation of the cyclopentadienyl-substituted bent metallocene unit leads to the formation of (III) as a 80:20 mixture of diastereomers as indicated by the X-ray structure analysis (P1, Z=2) as well as the 13C NMR spectrum in the solid state.
