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PROCESSES FOR FORMING COORDINATION COMPLEXES CONTAINING MONOSULFONATED CATECHOLATE LIGANDS

  • US 20170253620A1
  • Filed: 03/03/2016
  • Published: 09/07/2017
  • Est. Priority Date: 03/03/2016
  • Status: Active Grant
First Claim
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1. A method comprising:

  • providing a neat mixture of catechol and a sub-stoichiometric amount of sulfuric acid relative to the catechol;

    heating the neat mixture to form a reaction product comprising a mixture of catechol and a monosulfonated catechol or a salt thereof; and

    without separating the catechol and the monosulfonated catechol or the salt thereof from one another, forming a coordination complex from the reaction product having a metal center with at least one unsubstituted catecholate ligand and at least one monosulfonated catecholate ligand bound thereto.

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