3-Methylpentanoic acid → 3-Methylpentanoic anhydride

Participants

Reaction Steps

3-Methylpentanoic acid anhydride was prepared from 6 moles of 3-methylpentanoic acid and 4.5 moles of acetic acid anhydride, by distilling acetic acid and the excess acetic acid anhydride from the reaction mixture at atmospheric pressure to a pot temperature of 220° C. Thereafter the desired anhydride was purified by distillation under reduced pressure. Yield: 97% of theory.

Provenance & Evidence