The synthesis of chromans and flavans based on the interaction of di- and trihydroxybenzenes with ketones is of considerable interest.1,2 Thus, Livant et al.3 studied in detail only the con- densation products of acetone and resorcinol. The aim of this work was to study in detail the concentration of various ketones (acetone, cyclopentanone, and substituted cyclohexanones) with substituted resorcinols (4-chloro, 2-methyl, monomethyl ether and ...
