Silica bound co-pillar[4+1]arene as a novel supramolecular stationary phase†
Subbareddy
Mekapothula, 
a
Matthew A.
Addicoat,
a
David J.
Boocock,
a
John D.
Wallis,
a
Peter J.
Cragg
b
and
Gareth W. V.
Cave
*a
a
Matthew A.
Addicoat,
a
David J.
Boocock,
a
John D.
Wallis,
a
Peter J.
Cragg
b
and
Gareth W. V.
Cave
*a
Abstract
A novel co-pillar[4+1]arene incorporating two bromo-octyl substituents has been synthesised for the first time, using microwave irradiation in high yield (88%) in under four minutes, and bound to the surface of chromatographic silica particles. The resulting new stationary phase has been successfully utilised to separate xylene isomers via liquid chromatographic techniques.
![Graphical abstract: Silica bound co-pillar[4+1]arene as a novel supramolecular stationary phase](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=C9CC09656F&imageInfo.ImageIdentifier.Year=2020)
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