Breaking the Si-Ph bond with amino alcohols

In this work are described new instances that the authors observed of cleavage of the Si-Ph bond by di- and trialkanolamines. Interaction of phenylsilanes with di- and trialkanolamines in the presence of sodium alcoholate at T > 200/sup 0/C breaks the C/sub 6/H/sub 5/-Si bond. Interaction of diphenylmethoxysilane with bis(3-hydroxypropyl)amine forms a new heterocycle: 1-phenyl-2,10-dioxa-6-aza-1-silabicyclo(4.4.0/sup 1.6/) decane. They obtained /sup 1/H, /sup 13/C, and /sup 29/Si NMR on a Bruker WM-360 spectrometer. For analysis of the SSCC of protons they used the spectrum simulation program PANIC. The SSCC of /sup 13/C-/sup 29/Si and /sup 15/N-/sup 29/Si were measured in the /sup 29/Si spectra with natural isotope content.