Synthesis of Tellurabenziporphyrin and Its Pd(II) Complex

An unprecedented tellurabenziporphyrin containing C, N, and Te donor atoms was synthesized by condensing benzitripyrrane and tellurophene diol under acid catalyzed conditions. The tellurabenziporphyrin readily forms a Pd­(II) complex when treated with PdCl2 in CHCl3/CH3CN. The crystal structures of...

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Bibliographic Details
Published in:Organic letters 2018-02, Vol.20 (3), p.636-639
Main Authors: Kumar, Sunit, Lee, Way-Zen, Ravikanth, Mangalampalli
Format: Article
Language:English
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Summary:An unprecedented tellurabenziporphyrin containing C, N, and Te donor atoms was synthesized by condensing benzitripyrrane and tellurophene diol under acid catalyzed conditions. The tellurabenziporphyrin readily forms a Pd­(II) complex when treated with PdCl2 in CHCl3/CH3CN. The crystal structures of tellurabenziporphyrin and its Pd­(II) complex revealed that the benzene ring hinders the π-electron delocalization. An unusual five-membered ring formed inside the macrocycle due to the strong interaction between “Te” and “N” in the Pd­(II) complex.
ISSN:1523-7060
1523-7052
DOI:10.1021/acs.orglett.7b03715