Asymmetric [5+3] formal cycloadditions with cyclic enones through cascade dienamine–dienamine catalysis.
DOI Number:
10.1002/ange.201403753
Reaction Category:
Educt:
cyclic enones, (E)-3-styrylbenzo[d]isothiazole 1,1-dioxide
Product:
(3R,3'R,3a'S,6'R,6a'S)-3',6'-diphenyl-2',3',3a',5',6',6a'-hexahydro-2H,4'H-spiro[benzo[d]isothiazole-3,1'-pentalen]-4'-one 1,1-dioxide
Catalyst:
(9R)-6′-methoxy-cinchonan-9-amine
Cas No:
287979-82-2
Associated Product from Buchler GmbH:
Quinidine Base
Cas No:
56-54-2