Reduction of acetylsilane 0-silylcyanohydrins gave P-amino-a-hydroxysilanes, which were diazotized to give a-silyl ketones. The addition of organolithium reagents to the cyanohydrins was accompanied by sequential CN and 0-N silyl group migrations. Silylation of the resulting lithium enolates afforded P-siloxy-N, N-bissilylenamines.
![N-[2-oxo-2-[(4-phenyl-1,3-thiazol-2-yl)amino]ethyl]-2-phenyl-N-propylacetamide Structure](https://image.chemsrc.com/caspic/099/5908-40-7.png)