Verfahren zur Herstellung von 2-Silamorpholin-Derivaten

4 - Alkyl - 2,2 - dimethyl - 2 - silamorpholines of the general formula where R is an alkyl radical having 1 to 6 carbon atoms are prepared by reacting a halomethyl-dimethyl silane derivative of the general formula X-Si(CH3)2-CH2-Y, where X is chlorine or an alkoxyl radical having 1 to 3 carbon atoms and Y is chlorine or bromine, with a b -(alkylamino)-ethanol of the general formula R-NH-CH2-CH2-OH where R is as above, and a tertiary nitrogen base in an inert solvent, mixing the unseparated mixture of reaction products with an alkali metal hydroxide in aqueous solution, removing the non-aqueous phase which contains the tertiary nitrogen bases and decomposing this phase by fractional distillation. The unseparated mixture of reaction products may first be dissolved in aqueous hydrochloric acid, separated from the solvent which is precipitated and then mixed with the alkali metal hydroxide. The preparations of 2,2,4-trimethyl-2-silamorpholino, 4-ethyl-2,2-dimethyl-2-silamorpholine, and 4-n-propyl-2,2-dimethyl-2-silamorpholine, and 4-n-butyl-2,2-dimethyl-2-silamorpholine are described in the examples. A suitable tertiary nitrogen base is methylamine and a suitable inert solvent is benzene.