SYNTHESIS OF CYCLIC KETENE ACETALS

摘要

an improved process for preparing describes cyclic ketene acetals, such as 2 - methylene - 1.3 - dioxu00e9pane. the process involves reacting, at elevated temperatures, a halogenated cyclic ketene acetal as 2 - chloromethyl - 1.3 - dioxu00e9pane and a hydroxyl compound such as potassium hydroxide in an alcohol such as butanol reagent 2.