Author(s): Fernandes, Sergio Antonio ; Natalino, Ricardo ; Gazolla, Poliana Aparecida Rodrigues ; Silva, Márcio José da ; Jham, Gulab Newandram
Date: 2018
Origin: Oasisbr
Subject(s): Esterification reaction; p-Sulfonic acid calix[n]arene; Organocatalyst; Catalyst recovery
Esterification yields were significantly improved using calix[n]arenes catalysts under simple conditions. p-Sulfonic acid calix[4]arene and p-sulfonic acid calix[6]arene were powerful organocatalysts in several esterification reactions, which showed activity comparable or even superior to other well-established acids catalysts, such as, sulfuric acid, p-toluenesulfonic acid, and p-hydroxybezenesulfonic acid described in the literature.
