Enantioselective quaternization of 4-substituted oxazol-5-(4H)-ones using recoverable Cinchona-derived dimeric ammonium salts as phase-transfer organocatalysts.
DOI Number:
10.1016/j.tetasy.2012.01.012
Reaction Category:
MOP ID:
MOP_0000369
Educt:
2,4-disubstituted oxazol-5(4H)-ones, brominated hydrocarbons
Product:
2,4,4-trisubstituted oxazol-5(4H)-ones
Catalyst:
(8α,9R)-(8′′α,9′′R)- 1,1′′-[9,10-anthracenediylbis(methylene)]bis[9-hydroxy-Cinchonanium chloride
Cas No:
462128-11-6
Associated Product from Buchler GmbH:
Cinchonidine Base
Cas No:
485-71-2