%0 Journal Article %T Tricyclic flavonoids with 1,3-dithiolium substructure %A Lucian G. Bahrin %A Peter G. Jones %A Henning Hopf %J Beilstein Journal of Organic Chemistry %D 2012 %I %R 10.3762/bjoc.8.226 %X The synthesis of new 3-dithiocarbamic flavonoids has been accomplished by the reaction of the corresponding 2-hydroxyaryl dithiocarbamates with aminals. These flavonoids were obtained as a mixture of diastereoisomers, the anti isomer being the major one. The heterocyclization of these compounds provided novel tricyclic flavonoids bearing a 1,3-dithiolium-2-yl ring fused at the 3,4-carbon positions of the benzopyran moiety. %K aminals %K benzopyrans %K dithiocarbamates %K dithiolium salts %K flavonoids %U http://dx.doi.org/10.3762/bjoc.8.226