Abstract
The base-catalyzed condensation of 1-naphthol and formaldehyde in refluxing dimethylformamide affords three isomeric cyclic tetramers which are conformationally flexible over a wide temperature range. Their tetrabenzoate esters however show restricted flexibility. Variable-temperature NMR and low-temperature COSY is used to analyze the conformational preferences of these calix[4]naphthalenes.
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This paper is dedicated to the commemorative isssue on the 50th anniversary of calixarenes
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© 1994 Springer Science+Business Media Dordrecht
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Georghiou, P.E., Li, Z. (1994). Conformational Properties of the Calix[4]naphthalenes. In: Vicens, J., Asfari, Z., Harrowfield, J.M. (eds) Calixarenes 50th Anniversary: Commemorative Issue. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0267-4_4
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DOI: https://doi.org/10.1007/978-94-011-0267-4_4
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