Synthesis and Structure of Cyclic Oligo(p-phenylene oxide)s, −(C6H4O)n− (n = 6−10)
- 1 October 2006
- journal article
- research article
- Published by American Chemical Society (ACS) in The Journal of Organic Chemistry
- Vol. 71 (22), 8614-8617
- https://doi.org/10.1021/jo0609982
Abstract
Stepwise growth of oligo(p-phenylene oxide)s and cyclization via the Ullmann coupling reaction by using CuI/N,N-dimethylglycine afforded cyclic oligo(p-phenylene oxide)s, (n = 6-10). The structure of the new cyclophanes was determined by X-ray crystallography, which revealed that they have planar or slightly bent structures with diameters of 1.0-1.5 nm.Keywords
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