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Synlett 1998; 1998(7): 768-770
DOI: 10.1055/s-1998-1779
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Efficient Synthesis of Unsymmetrical Transition Metalloporphyrin Dimers under Mild Conditions

Victor V. Borovkov* , Juha M. Lintuluoto, Yoshihisa Inoue
  • *Inoue Photochirogenesis Project, ERATO, Japan Science and Technology Corporation, 4-6-3 Kamishinden, Toyonaka-shi, Osaka 565-0085, Japan
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Publication History

Publication Date:
31 December 2000 (online)

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New ethane-bridged unsymmetrical heterodimers of octaethylporphyrin containing transition metal ions (Mn and Fe) have been synthesized through a facile stepwise metallation-demetallation process under mild conditions. The synthetic strategy includes initial predominant insertion of Zn into one of the two porphyrin rings of free-base 1, followed by further incorporation of Mn of Fe into another porphyrin ring giving heterometallic dimers (4, 5) and the subsequent removal of Zn yielding free base-transition metal dimers (6, 7).

porphyrin - metalloporphyrin - porphyrin heterodimer - metallation

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