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SUMMARY:The unusual reactivity inside the supramolecular resorcinarene cap
 sule catalyst – from terpene cyclizations to glycosylations - Prof. Konr
 ad Teifenbacher\, University of Basel
DTSTART:20230126T140000Z
DTEND:20230126T150000Z
UID:TALK194089@talks.cam.ac.uk
CONTACT:Sharon Connor
DESCRIPTION:My group is interested in exploring catalysis inside supramole
 cular containers. Our main focus has been the hexameric resorcin[4]arene c
 apsule (see below)\, originally reported by the Atwood group.1 It has serv
 ed us as a reliable catalyst for a variety of acid-catalyzed cationic reac
 tions ranging from simple acetal hydrolysis to more complex iminium cataly
 sis and terpene cyclizations. Investigations revealed that related molecul
 ar capsules are not competent in these reactions. The most recent results 
 concerning terpene cyclizations will be presented.2\,3 Furthermore\, very 
 recent published\, as well as unpublished\, results concerning stereoselec
 tive glycosylations inside the hexameric resorcin[4]arene capsule will be 
 discussed.4 A unusual proton wire mechanism is likely at work.
LOCATION:Dept of Chemistry\, Wolfson Lecture Theatre 
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