Abstract
(E)-1-(2-Hydroxyphenyl)-3-(N,N-dimethylamino)prop-2-en-1-one reacts with allyl bromide, prenyl bromide, benzyl bromide and α,α’-dibromo-p-xylene in DMF to produce 3-allyl-, 3-prenyl-chromones, homoisoflavones and bischromones, respectively. Similar compounds were also obtained by deformylative allylation or benzylation of 3-formylchromone.
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