Chemische Berichte p. 799 - 805 (1996)
Update date:2022-08-04
Topics:
Strohmann, Carsten
Luedtke, Silke
Wack, Eric
The first high yield preparation of non -stabilized bis(lithiomethyl)silanes was performed by the reductive cleavage of C-S bonds with electron transfer reagents. Bis[(phenylthio)methyljsilanes synthesized by the reaction of dichlorosilanes with [(phenylthio)methyljlithium were transformed to the corresponding bis(lithiomethyl)silanes 7 by reaction with lithium naphthalenide (LiCiUHB) or lithium p,p'-di-(er/-butylbiphenylide (LiDBB) as an electron transfer reagent and were characterized by their reaction with Bu3SnCl. The C-S bonds of bis[(phenylthio)methyl]silanes can be cleaved selectively making possible the introduction of two different groups. -The silicon atom plays a central role in the reactivity of the presented structural types. The bis(lithiomethyl)silanes are used as new building blocks for the preparation of organosilanes, Si-H-functionalized organosilanes, and 1,3-disilacyclobutanes containing SiCH2Si structural units. VCH Verlagsgesellschaft mbH, 1996.
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