Asymmetric Aminocatalysis Combined with Iodine Catalysis: One-Pot Sequential Catalytic Approach to Access Chiral Spirodihydrobenzofuran-Pyrazolones.
DOI Number:
10.1021/acs.joc.6c00522
Reaction Category:
Educt:
(E)-4-(2-hydroxyphenyl)but-3-en-2-one, 5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one
Product:
spirodihydrobenzofuran-pyrazolones
Catalyst:
(8α,9S)-Cinchonan-9-amine
Cas No:
850409-61-9
Associated Product from Buchler GmbH:
Cinchonidine Base
Cas No:
485-71-2