In:
European Journal of Organic Chemistry, Wiley, Vol. 2007, No. 28 ( 2007-10), p. 4674-4687
Abstract:
The synthesis of some new [4.4]cyclophane diketals, monoketones, and diketones in good yields is reported along with the unusually low reactivity towards hydrolysis of the spiro‐1,3‐dioxane rings connected to the cyclophane bridges. The structural analysis carried out by X‐ray diffraction, NMR spectroscopy, and mass spectrometry shows significant intra‐ and intermolecular π–π and C–H–π interactions. The rotation of the aromatic rings and the flipping of the bridges have been investigated by molecular modeling and variable‐temperature NMR experiments. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Type of Medium:
Online Resource
ISSN:
1434-193X
,
1099-0690
DOI:
10.1002/ejoc.v2007:28
DOI:
10.1002/ejoc.200700343
Language:
English
Publisher:
Wiley
Publication Date:
2007
detail.hit.zdb_id:
1475010-7
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