Darstellung und Reaktivität von Phenylthiosubstituierten Oligosilanen

Abstract

Phenylthio substituted oligosilanes are obtained from the reaction of oligomeric silicon halides with alkali metal thiophenolates M¹SPh (M^I = Li, Na, K). Si—Si bonds are formed when phenylthiooli-gosilanes are reacted with alkali metal silicon compounds. Alkali metal thiophenolates, the second reaction products can be separated easily. Quite similarly, Fe—Si-bonds are obtained from phenyl-thiosilanes and Na[Fe(CO)₂Cp]. In contrast to the related alkali metal halide elimination reactions of organohalooligosilanes, transmetallations are never observed in the thiophenolate reactions.

Key Words:

• Monomeric and oligomeric silylthiophenolates
• oligomeric silanes with hydrogen
• methyl and phenyl substituents
• ¹H
• ¹³C
• ²⁹Si NMR
• mass spectroscopy