Acetic Acid → Diacetoxy-butene

Reaction equation

[CH2:1]=[CH:2][CH:3]=[CH2:4].O=O.[C:7]([OH:10])(=[O:9])[CH3:8]>>[C:7]([O:10][C:1]([O:10][C:7](=[O:9])[CH3:8])=[CH:2][CH2:3][CH3:4])(=[O:9])[CH3:8]

Participants

Reactant 3

HCID 176Acetic Acid

HCID 977Oxygen

HCID 78451,3-Butadiene

Product 1

HCID 18688720Diacetoxy-butene

Procedure

Acetic acid containing butadiene and nitrogen gas containing oxygen were continuously introduced into the reactor over 2,700 hours in completely the same manner as in Example 4 to conduct a reaction for yielding diacetoxybutene. Subsequently, the catalyst was withdrawn through the upper part of the reactor and examined for palladium content. As a result, the palladium content was found to be 4.8% by weight, i.e., it had decreased to 92.3% of the initial content. Furthermore, the surface of the catalyst withdrawn was examined with an optical microscope. As a result, many mars formed by friction were observed.