Acetic Anhydride → HCID 21118929, compound

Participants

Reaction Steps

Alternatively, 5,5-dimethyl-1,3-divinylhydantoin was prepared by acetylating at 80° C for 2 hours 216 grams (1 mole) of 1,3-bis(2-hydroxyethyl)-5,5-dimethylhydantoin with 408 grams (4 moles) of acetic anhydride in the presence of 20 ml. of pyridine to form the corresponding diacetate ester. Pyrolysis of said diacetate ester by passing through a hot tube at 550° C gave the above product in a 67% yield (at 39% conversion), boiling at 89°-92° C/0.1 mm. (Compound 1).

Provenance & Evidence