RSS-Feed abonnieren
Bitte kopieren Sie die angezeigte URL und fügen sie dann in Ihren RSS-Reader ein.
https://www.thieme-connect.de/rss/thieme/de/10.1055-s-00000083.xml
Synlett 2002(10): 1681-1682
DOI: 10.1055/s-2002-34217
DOI: 10.1055/s-2002-34217
LETTER
© Georg Thieme Verlag Stuttgart · New York
Iridium Complex-Catalyzed Enantioselective Intramolecular [4+2] Cycloaddition of Dieneynes
Weitere Informationen
Publikationsverlauf
Received
2 August 2002
Publikationsdatum:
23. September 2002 (online)


Abstract
A catalytic and highly enantioselective intramolecular [4+2] cycloaddition of dieneynes was achieved by use of chiral iridium complex prepared in situ from [IrCl(cod)]2 and BDPP [2,4-bis(diphenylphosphino)pentane]. The reaction proceeded in refluxed tert-butyl acetate to give chiral cyclohexa-1,4-dienes in very high enantiomeric excess.
Key words
catalysis - chiral auxiliaries - cycloadditions - Diels-Alder reactions - Iridium