Second-Generation meta-Phenolsulfonic Acid-Formaldehyde Resin as a Catalyst for Continuous-Flow Esterification was written by Hu, Hao;Ota, Hajime;Baek, Heeyoel;Shinohara, Kenta;Mase, Toshiaki;Uozumi, Yasuhiro;Yamada, Yoichi M. A.. And the article was included in Organic Letters in 2020.HPLC of Formula: 112-14-1 The following contents are mentioned in the article:
A second-generation m-phenolsulfonic acid-formaldehyde resin (PAFR II) catalyst was prepared by condensation polymerization of sodium m-phenolsulfonate and paraformaldehyde in an aqueous H2SO4 solution This reusable, robust acid resin catalyst was improved in both catalytic activity and stability, maintaining the characteristics of the previous generation catalyst (p-phenolsulfonic acid-formaldehyde resin). PAFR II was applied in the batchwise and continuous-flow direct esterification without water removal and provided higher product yields in continuous-flow esterification than any other com. ion-exchanged acid catalyst tested. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1HPLC of Formula: 112-14-1).
Octyl acetate (cas: 112-14-1) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.HPLC of Formula: 112-14-1
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics