Patent ID: 6072079
Filing Date: 2000-06-06
Classification: C07C

Abstract:
Process for the production of 3,4-diacetoxy-1-butene (DAcB) by the steps of (1) feeding 3,4-epoxy-1-butene (EpB) and acetic anhydride (Ac.sub.2 O) to a reaction zone while maintaining a concentration of potassium acetate (KOAc) of about 0.5 to 5.0 weight percent, based on the total weight of the materials present in the reaction zone, and (2) removing crude product comprising DAcB from the reaction zone, wherein the KOAc initially is formed in situ by contacting EpB, Ac.sub.2 O and a potassium compound selected from potassium carbonate, potassium bicarbonate, potassium hydroxide or a mixture of any two or more thereof and the reaction zone is maintained at a temperature in the range of about 100 to 140.degree. C.