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Second-Generation meta-Phenolsulfonic Acid-Formaldehyde Resin as a Catalyst for Continuous-Flow Esterification.
Hu, Hao; Ota, Hajime; Baek, Heeyoel; Shinohara, Kenta; Mase, Toshiaki; Uozumi, Yasuhiro; Yamada, Yoichi M A.
Afiliação
  • Hu H; RIKEN Center for Sustainable Resource Science , Wako , Saitama 351-0198 , Japan.
  • Ota H; RIKEN Center for Sustainable Resource Science , Wako , Saitama 351-0198 , Japan.
  • Baek H; RIKEN Center for Sustainable Resource Science , Wako , Saitama 351-0198 , Japan.
  • Shinohara K; RIKEN Center for Sustainable Resource Science , Wako , Saitama 351-0198 , Japan.
  • Mase T; Institute for Molecular Science , Okazaki , Aichi 444-8787 , Japan.
  • Uozumi Y; RIKEN Center for Sustainable Resource Science , Wako , Saitama 351-0198 , Japan.
  • Yamada YMA; Institute for Molecular Science , Okazaki , Aichi 444-8787 , Japan.
Org Lett ; 22(1): 160-163, 2020 01 03.
Article em En | MEDLINE | ID: mdl-31841008
ABSTRACT
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 commercial ion-exchanged acid catalyst tested.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article
Texto completo
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XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article