Synthesis of porphyrin cyclic oligomer based on quadruple hydrogen-bonding

Akihiro Takayama, Haruki Ohkawa, Hiroyuki Nishide

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Synthesis of a porphyrin cyclic oligomer based on ureidpyrimidinone, which forms a stable dimer via self-complementary quadruple hydrogen bonding, will be discussed. In our synthetic strategy, excess hydrogen-bonding unit namely, isocytosine was activated by carbonyldiimidazole to react with two amino groups of a porphyrin. This methodology is quite advantageous in terms of its efficiency and accessibility towards a supramolecular porphyrin cyclic oligomer. The concentration dependence of the ring-chain equilibrium in the supramolecular porphyrin oligomer was also investigated by diffusion ordered spectroscopy. Furthermore, results of the metathesis reaction to isolate the cyclic oligomer, will be also mentioned.

Original languageEnglish
Title of host publicationPolymer Preprints, Japan
Pages2652
Number of pages1
Volume54
Edition2
Publication statusPublished - 2005
Event54th SPSJ Symposium on Macromolecules - Yamagata
Duration: 2005 Sep 202005 Sep 22

Other

Other54th SPSJ Symposium on Macromolecules
CityYamagata
Period05/9/2005/9/22

Fingerprint

Porphyrins
Oligomers
Hydrogen bonds
Dimers
Spectroscopy

Keywords

  • Cyclic oligomer
  • Porphrin
  • Quadruple hydrogen bonding
  • Ureidopyrimidinone

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Takayama, A., Ohkawa, H., & Nishide, H. (2005). Synthesis of porphyrin cyclic oligomer based on quadruple hydrogen-bonding. In Polymer Preprints, Japan (2 ed., Vol. 54, pp. 2652)

Synthesis of porphyrin cyclic oligomer based on quadruple hydrogen-bonding. / Takayama, Akihiro; Ohkawa, Haruki; Nishide, Hiroyuki.

Polymer Preprints, Japan. Vol. 54 2. ed. 2005. p. 2652.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Takayama, A, Ohkawa, H & Nishide, H 2005, Synthesis of porphyrin cyclic oligomer based on quadruple hydrogen-bonding. in Polymer Preprints, Japan. 2 edn, vol. 54, pp. 2652, 54th SPSJ Symposium on Macromolecules, Yamagata, 05/9/20.
Takayama A, Ohkawa H, Nishide H. Synthesis of porphyrin cyclic oligomer based on quadruple hydrogen-bonding. In Polymer Preprints, Japan. 2 ed. Vol. 54. 2005. p. 2652
Takayama, Akihiro ; Ohkawa, Haruki ; Nishide, Hiroyuki. / Synthesis of porphyrin cyclic oligomer based on quadruple hydrogen-bonding. Polymer Preprints, Japan. Vol. 54 2. ed. 2005. pp. 2652
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