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A [3]Rotaxane of the Amide Type
Author(s) -
Vögtle Fritz,
Dünnwald Thomas,
Händel Mirko,
Jäger Ralf,
Meier Stephan,
Harder Gabriele
Publication year - 1996
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.19960020607
Subject(s) - rotaxane , axle , amide , stereochemistry , chemistry , materials science , crystallography , organic chemistry , supramolecular chemistry , physics , crystal structure , thermodynamics
Two new rotaxane types, the [2]rotaxanes 12a,b and the [3]rotaxane 13 , have been synthesised by treating the “axle” 7 with the stopper component 9 in the presence of the “wheel” 8 . A nonionic template intermediate of type 10 is proposed. The [3]rotaxane 13 was only obtained when the chain of the “axle” had a certain length: with n = 1 only [2]rotaxane 12 a was isolated, whereas with n = 2 the [3]rotaxane 13 was formed besides the [2]rotaxane 12 b . This suggests that more extended rotaxanes and polyrotaxanes can be synthesised by the template strategy.