Sterically hindered o-quinones functionalized with additional chelating groups were synthesized by the reaction of 3,6-di-tert-butyl-4,5-dichloro-o-benzoquinone with geminal dithiolates. The spin density distribution in reduced anion-radical derivatives of the new compounds was studied by EPR spectroscopy in order to reveal the possibilities of electronic communication between the coordination sites of the ditopic ligand. o-Quinones bearing the annulated thiete ring were synthesized and characterized.

中文翻译：

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在与碱金属偕二硫醇盐反应中取代 3,6-二叔丁基-4,5-二氯邻苯醌中的氯原子。新邻醌及其性质

通过 3,6-二叔丁基-4,5-二氯-邻苯醌与偕二硫醇盐反应合成了用额外螯合基团官能化的空间位阻邻醌。通过 EPR 光谱研究了新化合物的还原阴离子自由基衍生物中的自旋密度分布，以揭示双位配体的配位点之间电子通信的可能性。合成并表征了带有环状噻特环的邻醌。