METHOD FOR THE PRODUCTION OF ALKYLTHIO AND / OR ARYLTHIO SUBSTITUTED DIKETO-DIARYL-PYRROLOPYRROLE

摘要

Preparation of alkylthio and/or arylthio-substituted diketo-diaryl-pyrrolopyrroles (DPPs) of the formula Ia and dithio-bridged bis-diketo-diaryl-pyrrolopyrroles (bis-DPPs) of the formula Ibin which in formula IaG is phenyl substituted by at least one arylthio or alkylthio group, and G1 is G or a carbocyclic or heterocyclic radical, by reacting a haloaryl with a thiol or thiolate, and in formula Ib G5 is a phenylene, G6 is G1 but not G, and G7 is alkylene, cycloalkylene or phenylene, by reacting two haloaryls with a dithiol or dithiolate, which comprises reacting a thiol or thiolate with a halo-diketo-diaryl-pyrrolopyrrole ("halo-DPP") of the formula IIain which G2 is a halogenated phenyl group and G3 is G2 or G1, or reacting a dithiol or dithiolate with two halo-diketo-diaryl-pyrrolopyrroles ("halo-DPPs") of the formula IIbin which Hal is halogen such as fluorine, chlorine, bromine or iodine, and G6 is G1, and also novel DPPs and also bis-DPPs, compositions comprising the DPPs of the formula Ia prepared in accordance with the invention, and their uses.