Open AccessDiversity Oriented Preparation of Pillar[5]arene‐Containing [2]Rotaxanes by a Stopper Exchange Strategy
Author(s) -
Nierengarten Iwona,
Nierengarten JeanFrançois
Publication year - 2020
Publication title -
chemistryopen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 29
ISSN - 2191-1363
DOI - 10.1002/open.202000035
Subject(s) - rotaxane , trifluoromethyl , thioether , nucleophile , chemistry , pillar , ether , derivative (finance) , polymer chemistry , chloride , organic chemistry , supramolecular chemistry , molecule , catalysis , structural engineering , engineering , alkyl , financial economics , economics
Rotaxane building blocks bearing 3,5‐bis(trifluoromethyl) benzenesulfonate (BTBS) stoppers have been efficiently prepared from a pillar[5]arene derivative, 3,5‐bis(trifluoromethyl) benzenesulfonyl chloride (BTBSCl) and different diols, namely 1,10‐decanediol and 1,12‐dodecanediol. The BTBS moieties of these compounds are good leaving groups and stopper exchange reactions could be achieved by treatment with different nucleophiles thus affording rotaxanes with ester, thioether or ether stoppers.