SEARCH Articles Figures Tables 2.4- Hexadien 2.5- Dimethyl-2,4-hexadiene Anthracene, 9-cyanophotocycloaddition reactions Anthracenes 2.5- dimethyl-2,3-hexadiene Anthracenes reactions Dimethyl reactions Dimethyl-anthracene Hexadiene Hexadienes 2.3- hexadiene