Evidence of hydrogen bonding in stabilizing the cone conformation of a monoalkylated calix[4]arene. X-ray structure of 25-[2-(ethoxy-1-p-toluene-sulfonate)phenyl]-26,27,28-trihydroxy calix[4]arene

Authors
Guelzim, A Saadioui, M Asfari, Z Vicens, J
Citation
A. Guelzim et al., Evidence of hydrogen bonding in stabilizing the cone conformation of a monoalkylated calix[4]arene. X-ray structure of 25-[2-(ethoxy-1-p-toluene-sulfonate)phenyl]-26,27,28-trihydroxy calix[4]arene, J INCL P MA, 39(1-2), 2001, pp. 91-95
Citations number
10
Categorie Soggetti
Chemistry
Journal title
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
ISSN journal
13883127 → ACNP
Volume
39
Issue
1-2
Year of publication
2001
Pages
91 - 95
Database
ISI
SICI code
1388-3127(200102)39:1-2<91:EOHBIS>2.0.ZU;2-2
Abstract
The synthesis of 25-[2-(ethoxy-1-p-toluene-sulfonate)phenyl]-26,27,28-trihy droxy calix[4]arene 3 as a byproduct of the preparation of 1,3-dialkylated 25,27-di-[2-(ethoxy-1-p-toluene-sulfonate)phenyl]-26,28-dihydroxy calix[4]a rene 2 is reported. Compound 3 is a monoalkylated calix[4]arene in the cone conformation. The X-ray structure of 3 showed that this conformation is st abilized by intramolecular hydrogen bonding.