N-Confused Phlorin-Prodigiosin Chimera: meso-Aryl Oxidation and π-Extension Triggered by Peripheral Coordination

Guangxian Su, Qizhao Li, Masatoshi Ishida, Chengjie Li, Feng Sha, Xin Yan Wu, Lu Wang, Glib Baryshnikov, Dawei Li, Hans Ågren, Hiroyuki Furuta, Yongshu Xie

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An N-confused phlorin isomer bearing a dipyrrin moiety at the α-position of the confused pyrrole ring (1) was synthesized. PdII and BIII coordination at the peripheral prodigiosin-like moiety of 1 afforded the corresponding complexes 2 and 3. Reflux of 2 in triethylamine (TEA) converted the meso-phenyl into the PdII-coordinating phenoxy group to afford 4. Under the same reaction conditions, TEA was linked to the α-position of the dipyrrin unit in 3 as an N,N-diethylaminovinyl group to afford 5. Furthermore, peripheral coordination of BIII in 3 and 5 improved the planarity of the phlorin macrocycle and thus facilitated the coordination of AgIII at the inner cavity to afford 3-Ag and 5-Ag, respectively. These results provide an effective approach for developing unique porphyrinoids through peripheral coordination.

Original languageEnglish
Pages (from-to)1537-1541
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number4
Publication statusPublished - Jan 20 2020


All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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