Alkynylation of Isatin Derivatives Catalyzed by a Silver–Chiral Quaternary Ammonium Salt Derived from Quinine.
DOI Number:
10.1021/acs.joc.3c00006
Reaction Category:
Educt:
isatin derivatives, terminal alkynes
Product:
3-alkynyl-3-hydroxy-2-oxindoles
Catalyst:
silver acetate, (8α,9R)-(8′′α,9′′R)-1,1′′-[[1,1′-biphenyl]-2,2′-diylbis(methylene)]bis[9-hydroxy-6′-methoxy-Cinchonanium bromide (1:2)
Cas No:
2925680-56-2
Associated Product from Buchler GmbH:
Quinine Base
Cas No:
130-95-0