Abstract: Acyloxysilanes are prepared by a process of reacting an organochlorosilane with an excess of monocarboxylic anhydride at elevated temperature, thereby forming product acyloxysilane and by-product acyl chloride transferring the reaction mixture to the middle inlet of a separation tower having a still pot at its base, removing excess carboxylic anhydride by distillation at the tower top under reduced pressure, removing acyl chloride by-product from the separation tower, uniformly removing acyloxysilane from the tower still pot, and reacting virtually quantitatively the residual acid chloride present in the acyloxysilane removed from the still pot by adding a metal carboxylate to the acyloxysilane and separating the metal chlorides formed from the product.

Abstract: A process is provided for the production of N-substituted morpholines and piperidines of the formula ##STR1## comprising the steps of (a) reacting a methallylbenzene of the formulas ##STR2## wherein R.sub.1 is H or a straight or branched chained C.sub.1 -C.sub.4 alkyl group, alone or in admixture with a corresponding isobutenylbenzene of the formula ##STR3## wherein R.sub.1 is as defined above, with hydrogen bromide in the presence of a peroxide to yield, respectively, the corresponding bromine compound of the formula ##STR4## wherein R.sub.1 is as defined above, alone or in admixture with a bromine compound of the formula ##STR5## wherein R.sub.1 is as defined above and wherein the bromine atom is in the secondary or tertiary position, and(b) reacting the resultant bromine compound of formula IV, alone or in admixture with the corresponding bromine compound of Formula V, with a compound of the formula ##STR6## wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.