Abstract A new class of quinone derivatives, the dicyanodiimines 2, 21, and 23, has been synthesized by the reaction of the corresponding quinones with bis (trimethylsilyl) carbondiimide (8) and titanium tetrachloride. A wide variety of substrates, even those which contain bulky groups and those which exhibit a strong influence on the redox potential, has been prepared. A route starting from p-phenylenediamines 4via the N, N′- ...
