✦ LIBER ✦
Synthesis of linked symmetrical [3] and [5]rotaxanes having an oligomeric phenylene ethynylene (OPE) core skeleton as a π-conjugated guest via double intramolecular self-inclusion
✍ Scribed by Susumu Tsuda; Jun Terao; Yuji Tanaka; Tomoka Maekawa; Nobuaki Kambe
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- French
- Weight
- 469 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
Linked symmetrical [3] and [5]rotaxanes consisting of an oligomeric phenylene ethynylene (OPE) framework as a p-conjugated guest moiety and lipophilic permethylated a-cyclodextrins (PM a-CDs), as macrocyclic hosts have been prepared by double intramolecular self-inclusion of an OPE guest unit carrying two PM a-CDs followed by capping with bulky stopper groups using click azide-alkyne Huisgen cycloaddition or Sonogashira coupling. The structures of these linked rotaxanes were determined by MALDI-TOF mass spectrum and two-dimensional NMR spectroscopy.