Organocatalytic asymmetric formal [3 + 2] cycloaddition reaction of isocyanoacetates with saccharin-derived 1-azadienes.
Journal
Organic & biomolecular chemistry
ISSN: 1477-0539
Titre abrégé: Org Biomol Chem
Pays: England
ID NLM: 101154995
Informations de publication
Date de publication:
28 Apr 2021
28 Apr 2021
Historique:
entrez:
28
4
2021
pubmed:
29
4
2021
medline:
29
4
2021
Statut:
ppublish
Résumé
An efficient organocatalytic diastereo- and enantioselective formal [3 + 2] cycloaddition reaction of α-isocyanoacetates with saccharin-derived 1-azadienes catalyzed by a dihydroquinine derived squaramide catalyst has been investigated, and it furnished the corresponding directly linked benzo[d]isothiazole 1,1-dioxide-dihydropyrroles with two adjacent tertiary-quaternary stereocenters in high yields (up to 98%), with moderate to excellent stereoselectivities (up to >20 : 1 dr and 97% ee) under mild conditions.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM