Die kondensation von tri(alkylaminosilyl)aminen zu cyclodisilazanen und deren ionische ringaufweitung zu cyclotrisilazanen
作者:H. Bürger、R. Mellies、K. Wiegel
DOI:10.1016/s0022-328x(00)91815-1
日期:1977.12
The tridentate ligand CH(SiMe2NHMe)3 has been prepared. It can only be doubly metallated by LiR. Attempts to prepare N(SiMe2NHR)3 from N(SiMe2Cl)3 and RNH2 (R = Me, Et, i-Pr) afforded only cyclodisilazanes HNRSiMe2N(SiMe2)2NR. These rearrange in the course of their reaction with LiC4H9 to give cyclotrisilazane derivatives LiN(SiMe2NR)2SiMe2. The ring expansion proceeds at room temperature by an anionic