Alkylidene Meldrum′s Acid as Acceptor-Donor-Acceptor with Azomethine Ylide for Organocatalytic Asymmetric (3+2) Cycloaddition/Annulation: Synthesis of Chromeno[4,3-b]pyrrolidine.
DOI Number:
10.1002/adsc.202300609
Reaction Category:
Educt:
5-benzylidene-2,2-dimethyl-1,3-dioxane-4,6-dione, diethyl (E)-2-((5-bromo-2-hydroxybenzylidene)amino)malonate
Product:
diethyl (3S,3aR,9bS)-8-bromo-4-oxo-3-phenyl-1,3a,4,9b-tetrahydrochromeno[4,3-b]pyrrole-2,2(3H)-dicarboxylate
Catalyst:
N-[3,5-Bis(trifluoromethyl)phenyl]-N′-[(8α,9S)-6′-methoxycinchonan-9-yl]thiourea
Cas No:
852913-16-7
Associated Product from Buchler GmbH:
N-[3,5-Bis(trifluoromethyl)phenyl]-N′-[(8α,9S)-6′-methoxycinchonan-9-yl]thiourea
Cas No:
852913-16-7