Christian Kayser

Reactions of oligosilyl potassium compounds with Group 4 metallocene dichlorides

Abstract By the reaction of silyl anions with Group 4 metallocene dichlorides, a number of new Group 4 oligosilyl compounds have been synthesized. The silyl residues employed include the popular tris(trimethylsilyl)silyl group and sterically more encumbered derivatives. For the cases of the tris(trimethylsilyl)silyl group both the mono and the disilylated products were obtained.

Oligosilylanions and their Reactions with Zirconocene and Hafnocene Dichlorides

Summary. New group 4 metallocene oligosilyl compounds (RSi(SiMe3)2MCp2Cl; M=Zr, R=H, Me, SiMe3, SiMe2tBu, SiMe2CMe2CHMe2, SiMe2Si(SiMe3)3; M=Hf, R=H, SiMe3) have been synthesized by reaction of the respective oligosilyl potassium compounds with zirconocene or hafnocene dichloride.Zusammenfassung. Eine Reihe neuer Übergangsmetall-Siliciumverbindungen der 4. Nebengruppe (RSi(SiMe3)2M(C5H5)2Cl; (M=Zr, R=H, Me, SiMe3, SiMe2tBu, SiMe2CMe2CHMe2, SiMe2Si (SiMe3)3; M=Hf, R=H, SiMe3) wurde durch Umsetzung der entsprechenden Oligosilylkaliumverbindungen mit Zirconocen- oder Hafnocendichlorid synthetisiert.