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.
|ホスト出版物のタイトル||Polymer Preprints, Japan|
|出版ステータス||Published - 2005|
|イベント||54th SPSJ Symposium on Macromolecules - Yamagata|
継続期間: 2005 9月 20 → 2005 9月 22
|Other||54th SPSJ Symposium on Macromolecules|
|Period||05/9/20 → 05/9/22|
ASJC Scopus subject areas