反应详情

A mixture of 46.3 g (0.091 mol) of 3-(octadecyloxy)-5-(phenylmethoxy)benzoic acid methyl ester and 45 ml (0.27 mol) of 6N NaOH in 750 ml of methanol and 300 ml of dioxane was stirred at reflux for 4 hours. The reaction mixture was filtered and the filtrate was concentrated at reduced pressure. The residue was suspended in water, acidified and filtered to give 44.4 g (99% yield, mp 97°-99°) of 3-(octadecyloxy)-5-(phenylmethoxy)benzoic acid.

1. temperatureat reflux for 4 hours
2. filtrationThe reaction mixture was filtered
3. concentrationthe filtrate was concentrated at reduced pressure
4. filtrationfiltered