Harman Patil

Ethylidene diacetate

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Appearance  Colorless liquid
Ethylidene diacetate

Ethylidene diacetate is an organic compound with the formula (CH3CO2)2CHCH3. A colorless low-melting solid, it once served as a precursor to vinyl acetate.

Preparation

A major industrial route involves the reaction of acetaldehyde and acetic anhydride in the presence of a ferric chloride catalyst:

CH3CHO + (CH3CO)2O → (CH3CO2)2CHCH3

It can be converted to the valuable monomer vinyl acetate by thermal elimination of acetic acid:

(CH3CO2)2CHCH3 → CH3CO2CH=CH2 + CH3CO2H

References

Ethylidene diacetate Wikipedia


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