The chemistry of the ‘insoluble red’ woods. Part XII. Some reactions of isoflavylium salts
Abstract
Various methoxyisoflavylium perchlorates have been condensed with NN-dimethylaniline to yield 2-substituted flav-3-enes, which were oxidised to the corresponding, highly coloured, 2-(p-dimethylaminophenyl)isoflavylium salts.