Biocatalytic Methyl Ether Cleavage: Characterization of the Corrinoid‐Dependent Methyl Transfer System from Desulfitobacterium hafniense

Abstract: The ether functionality represents a very common motif in organic chemistry and especially the methyl ether is commonly found in natural products. Its formation and cleavage can be achieved via countless chemical procedures. Nevertheless, since in particular the cleavage often involves harsh reaction conditions, milder alternatives are highly demanded. Very recently, we have reported on a biocatalytic shuttle catalysis concept for reversible cleavage and formation of phenolic O‐methyl ethers employing a corrinoid‐dependent methyl transferase system from the anaerobic organism Desulfitobacterium hafniense. Here we report the technical study of this system, focusing on the demethylation of guaiacol as model reaction. The optimal buffer‐, pH‐, temperature‐ and cofactor‐preferences were determined as well as the influence of organic co‐solvents. Beside methyl cobalamin also hydroxocobalamin turned out to be a suitable cofactor species, although the latter required activation. Various O‐methyl phenyl ethers were successfully demethylated with conversions up to 82% at 10 mM substrate concentration.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Biocatalytic Methyl Ether Cleavage: Characterization of the Corrinoid‐Dependent Methyl Transfer System from Desulfitobacterium hafniense ; volume:361 ; number:11 ; year:2019 ; pages:2688-2695 ; extent:8
Advanced synthesis & catalysis ; 361, Heft 11 (2019), 2688-2695 (gesamt 8)

Creator
Richter, Nina
Farnberger, Judith E.
Pompei, Simona
Grimm, Christopher
Skibar, Wolfgang
Zepeck, Ferdinand
Kroutil, Wolfgang

DOI
10.1002/adsc.201801590
URN
urn:nbn:de:101:1-2022072707432173398931
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:26 AM CEST

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Associated

  • Richter, Nina
  • Farnberger, Judith E.
  • Pompei, Simona
  • Grimm, Christopher
  • Skibar, Wolfgang
  • Zepeck, Ferdinand
  • Kroutil, Wolfgang

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