A second-generation -phenolsulfonic acid-formaldehyde resin (PAFR II) catalyst was prepared by condensation polymerization of sodium -phenolsulfonate and paraformaldehyde in an aqueous HSO solution. This reusable, robust acid resin catalyst was improved in both catalytic activity and stability, maintaining the characteristics of the previous generation catalyst (-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 commercial ion-exchanged acid catalyst tested.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.orglett.9b04084 | DOI Listing |
Publication Analysis
Top Keywords
-phenolsulfonic acid-formaldehyde
12
acid-formaldehyde resin
12
second-generation -phenolsulfonic
8
resin catalyst
8
continuous-flow esterification
8
resin pafr
8
catalyst
5
resin
4
catalyst continuous-flow
4
esterification second-generation
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!