ChemInform Abstract: Pyrylium Compounds. Part 42. Benzocycloalkenones and Dihydro-2H,7H-1-benzopyranones from 2,4,6-Triarylpyrylium Salts and Cycloalkane-1,2-diones.
Abstract
Depending on the conditions the reaction of pyrylium salts, e.g. (I), with the cyclic diketones (II) leads to compounds of type (IV) or (VII).
ChemInform Abstract
Depending on the conditions the reaction of pyrylium salts, e.g. (I), with the cyclic diketones (II) leads to compounds of type (IV) or (VII). The transformation of (VII) of (IV) is possible.