Enantioselective Construction of Chiral Cyclopropa [c] coumarins via Lewis Base-Catalyzed Cyclopropanation.
DOI Number:
10.1021/acs.joc.0c01782
Reaction Category:
Educt:
substituted 6,7-dihydro-2H-chromen-2-one, tert-butyl 2-bromoacetate
Product:
substituted tert-butyl (1S,7bR)-2-oxo-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-1-carboxylate
Catalyst:
(8α,9R)-(8′′α,9′′R)-9,9′′-[(2,5-Diphenyl-4,6-pyrimidinediyl)bis(oxy)]bis[10,11-dihydro-6′-methoxycinchonan]
Cas No:
149820-65-5
Associated Product from Buchler GmbH:
Dihydroquinine Base
Cas No:
522-66-7