Irina V. Arbuzova

Recyclization of carbonyl-substituted 4H-chromenes and 1H-benzo[f]chromenes by the action of amidines and guanidine: a novel method for the synthesis of ortho-hydroxybenzylpyrimidines

D. V. Osipov, Yu. V. Popova, V. A. Osyanin, 2016, Chemistry of Heterocyclic Compounds.