Tags: Chemical Compound, Chemical Substance.
13-diphenylpropane-13-dione (dibenzoylmethane DBM) is an aromatic 13-diketone acetylacetone (acac) derivative where both methyl groups have been substituted by phenyl groups. It is white solid melting 77−78 °C. Similarly to acac DBM exist as two tautomeric forms however keto-enol equilibrium of DBM is strongly shifted to the enol form. It is result of formation of intra-molecular hydrogen bond which is conjugated with phenyl rings.
