Organocatalytic asymmetric sequential 1,6-addition/acetalization of 1-oxotetralin-2-carbaldehyde to ortho-hydroxyphenyl-substituted para-quinone methides for synthesis of spiro-3,4-dihydrocoumarins.
DOI Number:
10.1021/acs.joc.7b03177
Reaction Category:
Educt:
substituted 4-(2-hydroxybenzylidene)cyclohexa-2,5-dien-1-one, substituted 1-oxo-1,2,3,4-tetrahydronaphthalene-2-carbaldehyde
Product:
spiro-3,4-dihydrocoumarins
Catalyst:
3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione
Cas No:
1256245-84-7
Associated Product from Buchler GmbH:
3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione
Cas No:
1256245-84-7