A novel synthesis of hemispherands

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Ostaszewski, Ryszard and Verboom, Willem and Reinhoudt, David N. (1992) A novel synthesis of hemispherands. Synlett, 1992 (4). pp. 354-356. ISSN 0936-5214

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Abstract:A novel, flexible synthesis of hemispherands {2,5,8-trioxa[9](3,3″) m-terphenylophanes 5a-d} with different central aromatic groups is described. The key step comprises the introduction of the central aromatic ring in the last step of the synthesis via a Suzuki cross-coupling reaction using palladium tetrakis(triplienylphosphine) as a catalyst and sodium or potassium cations serving as a template ion in the macrocyclization.
Item Type:Article
Copyright:© 1992 Thieme
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/12598
Official URL:http://dx.doi.org/10.1055/s-1992-22013
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Metis ID: 106779