Formose-Reaktion, I Kinetik und Mechanismus der Sekundärreaktionen bei Anwesenheit von Formaldehyd / Formose Reaction, I Kinetics and Mechanism of the Secondary Reaction Step in the Presence of Formaldehyde

Abstract

Quantitative kinetic results of the intermediates and end products of the formose reaction are obtained for the first time by the application of high pressure liquid chromatography. A mechanism for the secondary reaction step of the formose reaction in the presence of excess formaldehyde is derived from these results : Formaldehyde adds successively to intermediates and the formation of xylose is highly favoured. All results are characteristic for typical aldol-type reactions. Almost no cleavage of the intermediate and end products is observed.