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The relative reaction constants for the basecatalyzed ethoxylation of primary straight chain alcohols have been determined for the unreacted alcohol and the first three ethylene oxide adducts. The distribution of the ethoxylates was found using molecular distillation, nuclear magnetic resonance analysis and gas liquid partition chromatography.A mathematical model describing the distributions was set up and programmed on a 7090 digital computer. Solution of the program gave the relative reaction constants for the alcohol and the first three adduets.The relative reactivities of the adducts in the base-catalyzed ethoxylation of primary straight chain alcohols are shown to increase with adduct number, but tend to a constant value as the adduct number increases. Results also show that alcohols from C6 to Cts are equally reactive to ethylene oxide on a molar basis.

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Die Kinetik der Substitution der p‐Liganden in den Komplexen (I) durch andere Pho phine und Phosphite wie z.B. Tributyl‐ und ‐p‐tolylphosphin sowie Triäthylphosphit wird untersucht.