Giant Cyclophanes Built from Polyphenyl Aromatic Substructures
- 16 September 2000
- journal article
- Published by American Chemical Society (ACS) in The Journal of Organic Chemistry
- Vol. 65 (23) , 7711-7717
- https://doi.org/10.1021/jo000236l
Abstract
Two very large cyclophanes (3, C132H92O8S4; 4, C172H120O8S4) were prepared by means of short syntheses (∼5 steps) from commercial starting materials. In each of these cyclophanes, two octaphenylnaphthalene subunits or two 1,3-bis(pentaphenylphenyl)benzene subunits were tethered to form the final macrocycle. X-ray analysis of 3 shows it to have a collapsed conformation, but molecules of 4 have large central cavities which are aligned in the crystal to form wide, solvent-containing channels.Keywords
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