Thiol-promoted catalytic synthesis of diphenolic acid with sulfonated hyperbranched poly(arylene oxindole)s.

نویسندگان

  • Stijn Van de Vyver
  • Jan Geboers
  • Sasja Helsen
  • Feng Yu
  • Joice Thomas
  • Mario Smet
  • Wim Dehaen
  • Bert F Sels
چکیده

Acid-catalyzed condensation of levulinic acid and phenol into high yields of diphenolic acid (>50%) is possible with a combination of sulfonated hyperbranched polymers and thiol promotors, either added as a physical mixture or bound to the polymer by ion-pairing.

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Water-soluble sulfonated hyperbranched poly(arylene oxindole) catalysts as functional biomimics of cellulases.

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عنوان ژورنال:
  • Chemical communications

دوره 48 29  شماره 

صفحات  -

تاریخ انتشار 2012