Abstract

AbstractReaction of a twofold molar excess of bis(2‐pyridylmethyl)amine DPA with 8α‐bromoAc4riboflavin in dry DMF over 24 h affords the 8α‐[bis(2‐pyridylmethyl)amine]‐N‐Ac4riboflavin ligand. This compound can be described as a tweezer in which the flavin moiety acts as a potential electron mediator. The trichloroferric complex has been prepared, and together with the low potential reduction wave of the flavin moiety, the presence of a reversible FeIII/FeII couple at a higher potential is observed. The deacetylated ligand 8α‐[bis(2‐pyridylmethyl)amine]‐N‐riboflavin can easily be obtained. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)

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