Oxidative conversions of 2,2'-diphenoquinone valence isomers with 2,3-dichloro-5,6-dicyanobenzoquinone. Synthesis and spectroscopic properties of (E)-(3,3')dibenzofuranylidene-2,2'-diones (isoxindigos)
Oxidative conversions of 2,2'-diphenoquinone valence isomers with 2,3-dichloro-5,6-dicyanobenzoquinone. Synthesis and spectroscopic properties of (E)-(3,3')dibenzofuranylidene-2,2'-diones (isoxindigos)