1,3-BIS[(DI)-ALKYLAMINO]-PENTAMETHYL-DISILAZANES . (SILICON-NITROGEN COMPOUNDS .83.

1,3-Bis(alkylamino)pentamethyldisilazanes, which are important for the synthesis of special cyclotrisilazanes from different building units, could be prepared by reaction of 1,3-dichloropentamethyldisilazanes with alkylamines (equ. 5), or by transamination of 1,3-bis(methylamino)pentamethyldisilazane, which is easily obtained from dimethyldichlorosilane and methylamine, with higher primary amines (equ. 3). The properties of the compounds II-XI, prepared for the first time, may be taken from Table 1. © 1969 Springer-Verlag.