p-Toluenesulfonic acid → Methyl 16-methylheptadecanoate

Participants

Reaction Conditions

Reaction Steps

About 780 grams of isostearic acid (acid number=194.4), 1 gram of p-toluenesulfonic acid were charged to a flask equipped with a heating mantle, stirrer, sub-surface inlet tube with a nitrogen purge and a condenser. The contents of the flask were heated under nitrogen flow to 117° C. About 400 grams of methanol were then added via the sub-surface inlet tube over 3.5 hours (acid number=9.6), 200 grams of additional methanol were added and the reaction continued for another 1.5 hours to obtain a final acid number of 0.6.

Provenance & Evidence