Acetic Anhydride → Acetaldehyde

HRID 399647Notes

Reaction equation

HRID 399647 reaction equation
[C:1]([O:4][C:5](=O)[CH3:6])(=[O:3])[CH3:2]>C(O)(=O)C>[C:1]([O:4][CH:5]=[CH2:6])(=[O:3])[CH3:2].[CH:1](=[O:3])[CH3:2]

Participants

4

Procedure

The material contained in the base in Example 1 was used in this experiment. Acetic anhydride containing 1 weight percent benzenesulfonic acid was fed at 20.76 mL per hour while maintaining the acetaldehyde feed at 12 mL per hour. These feed rates gave an acetaldehyde:acetic anhydride feed ratio of 1:1. After operating 5.1 hours to adjust conditions, an additional 26.7 hours of operation produced an average of 11.5 g per hour vinyl acetate, 1.75 g per hour acetaldehyde, and 5.72 g per hour acetic acid in the overhead takeoff, which was operated to remove the distillation fraction boiling below or at 89° C.

Sources & evidence

ORD record
ord-d6b89374d8bb4cc5a7cfbf59af569429
Source dataset
uspto-grants-1998_10
Patent number
US05821384

Reaction notes

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