A cyclotetraicosaphenylene

Authors
Hensel, V Schluter, AD
Citation
V. Hensel et Ad. Schluter, A cyclotetraicosaphenylene, CHEM-EUR J, 5(2), 1999, pp. 421-429
Citations number
26
Categorie Soggetti
Chemistry
Journal title
CHEMISTRY-A EUROPEAN JOURNAL
ISSN journal
09476539 → ACNP
Volume
5
Issue
2
Year of publication
1999
Pages
421 - 429
Database
ISI
SICI code
0947-6539(199902)5:2<421:AC>2.0.ZU;2-M
Abstract
Suzuki cross-coupling of kinked oligophenylene building blocks is used for the repetitive synthesis of large hexagons, which as a result of their subs titution with flexible alkyl chains are soluble in common organic solvents. Cycle 15 with its 24 phenylene units is the largest shape persistent cycle known. The last cyclization step proceeds with 68% yield.