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 language | English |
|---|---|
| Title of host publication | Polymer Preprints, Japan |
| Pages | 2652 |
| Number of pages | 1 |
| Volume | 54 |
| Edition | 2 |
| Publication status | Published - 2005 |
| Event | 54th SPSJ Symposium on Macromolecules - Yamagata Duration: 2005 Sept 20 → 2005 Sept 22 |
Other
| Other | 54th SPSJ Symposium on Macromolecules |
|---|---|
| City | Yamagata |
| Period | 05/9/20 → 05/9/22 |
Keywords
- Cyclic oligomer
- Porphrin
- Quadruple hydrogen bonding
- Ureidopyrimidinone
ASJC Scopus subject areas
- Engineering(all)