Sulfur-assisted interconversion between N-confused porphyrin and N-fused porphyrin

Satoshi Touden, Yoshiya Ikawa, Ryuichi Sakashita, Motoki Toganoh, Shigeki Mori, Hiroyuki Furuta

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The ring-opening reaction of N-fused tetraphenylporphyrin (NFTPP-H, 2) to C3-substituted N-confused tetraphenylporphyrin (NCTPP-S-Ar, 4) proceeded efficiently in 85-95% yields. Furthermore, removal of the C3-arylthio- substituents in 4 was achieved by the two types of desulfurization reactions. The Ni 2B-mediated desulfurization afforded C3-free N-confused tetraphenylporphyrin (NCTPP-H, 1) whereas the radical-mediated desulfurization with (n-Bu) 3Sn-H and AIBN promoted the ring-fusion to afford 2.

Original languageEnglish
Pages (from-to)6071-6074
Number of pages4
JournalTetrahedron Letters
Issue number45
Publication statusPublished - Nov 7 2012

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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