Isolation of two conformationally frozen isomers of a bridged calix[6]arene

Two conformationally frozen isomers of a 1,4-bridged calix[6]arene, one of which is a cone conformer while the other adopts a 1,2,3-alternate conformation, have been isolated by silica-gel chromatography. The interconversion between them was not observed even after healing either of them at 120 degr...

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Bibliographic Details
Published inChemistry letters no. 11; pp. 993 - 994
Main Authors Saiki, T, Goto, K, Okazaki, R
Format Journal Article
LanguageEnglish
Published TOKYO Chemical Soc Japan 01.11.1996
Subjects
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
CALIXARENES
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Summary:Two conformationally frozen isomers of a 1,4-bridged calix[6]arene, one of which is a cone conformer while the other adopts a 1,2,3-alternate conformation, have been isolated by silica-gel chromatography. The interconversion between them was not observed even after healing either of them at 120 degrees C.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.1996.993