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Chiral xanthone

SNl-type reactions 747 chiral triazoUum salts 497,1113 chiral vidnal diamines 311 chiral xanthone 1114... [Pg.1399]

Tetrahydroxanthen-l-ones have been obtained through enantioselective domino oxa-Michael - aldol reactions between salicylaldehydes and cyclohexenones using a chiral pyrrolidine catalyst in the presence of 2-nitrobenzoic acid <07TL2181>. A similar approach using chiral 4-hydroxycyclohexenones and V-methylimidazole as catalyst leads to a diastereomeric mixture of the reduced xanthones (Scheme 40) <07S2175>. Dimeric... [Pg.420]

See other pages where Chiral xanthone is mentioned: [Pg.219]    [Pg.1114]    [Pg.1114]    [Pg.219]    [Pg.1114]    [Pg.1114]    [Pg.73]    [Pg.118]    [Pg.201]    [Pg.4]    [Pg.1188]    [Pg.1188]    [Pg.158]   
See also in sourсe #XX -- [ Pg.1114 ]



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