Elementary Stages of Photochemical Reactions of Substituted 2,6-Diphenyl-para-benzoquinones with Thiols.

Using the effects of chemical polarization of nuclei, mechanism and elementary stages of photochemical reduction of 2,6-diphenyl-1,4-benzoquinone with thiols have been elucidated. The studied quinone is reduced with ethanethiol in two stages (transfer of electron followed by proton transfer). The final photolysis product is a derivative of dibenzofuran. [ABSTRACT FROM AUTHOR]