Add time:07/29/2019         Source:sciencedirect.com

A convenient, one-step method has been developed for the synthesis of N,N′-bis(4′-aminophenyl)-1,4-quinonenediimine and its derivatives from the oxidation of p-phenyl-enediamine in the presence of aniline or substituted anilines in an acidic aqueous medium. These diimine compounds can be readily reduced to afford their corresponding diamine derivatives.

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