Formation of some linear polycyclic diquinones via a novel dimerization
Abstract
2-Methyl-1,4-naphthoquinone undergoes dimerization in the presence of ethanolic N-methylcyclohexylamine to yield the linear diquinone, pentacene-5,7:12,14-diquinone. 2-Methyl-1,4-anthraquinone, 2-methyltetracene-1,4-quinone and 6-methylquinoline-5,8-quinone dimerize similarly under these conditions.