| abstract |
A process is described for the production of quinone derivatives of the structure DOLLAR F1, in which R¶1¶, R¶2¶ and R¶3¶, identical or different, are hydrogen, NH¶2¶, OH, halogen, aryl or alkyl with a chain length of 1 are to 10 atoms, where the alkyl radical can contain N, O, S and P as heteroatoms. The residues R¶1¶ and R¶2¶ can also together form an aryl residue. X and Y stand for F, Cl, Cr, I, OH, where X and Y can be the same or different, but are not simultaneously OH and n = 1, 2, 3, 4, 5, 6, 7, 8, 9 or can be 10. In the method according to the invention, a quinone derivative of the structure DOLLAR F2 is provided, which is dissolved in a solvent mixture comprising water, at least one polar solvent and at least one aromatic solvent. Then an effective amount of an addition agent containing at least one halogen atom is added. |