Substituierte N,N′-Bis(silyl)-cyclodisilazane

摘要

Cleavage of cyclotri- and-tetrasilazanes with hydrogen halides or with dimethyldihalogenosilanes (scheme 1; equ. 7 and 8) and the intermolecular condensation of 1.3-dihalogenotetramethyldisilazanes by pyrolysis, in the presence of triethylamine, or with cyclosilazanes (equ. 11, 12), lead to the N.N′-bis-(dimethylhalogenosilyl)-tetramethylcyclodisilazanes (I–III), which can be transformed via equ. 13, 14, 20 (scheme 2) and 21 into numerous derivatives (IV–