p-Toluenesulfonic acid → 1-Acetoxy-3-methyl-1,3-butadiene

Participants

Reaction Steps

Prenal (0.332 mol) was run gradually into isopropenyl acetate (0.532 mol) in which paratoluenesulphonic acid (1% by weight) had been dissolved. The acetone was distilled off as it was formed. The temperature of the mixture was 93°-94° C. at the beginning and 118° C. after heating for 1 hour 50 minutes. The 1-acetoxy-3-methylbutadiene was then purified by distillation. The boiling point of the product was 48°-52° C./13 mm Hg.

Provenance & Evidence