Solid solutions of pyrrolo-(3,4-C)-pyrrols

Details Solid solutions of pyrrolo-(3,4-C)-pyrrols Solid solutions of pyrrolo-(3,4-C)-pyrrols

1987-07-29

1988-11-08

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546271, 544333, 106288Q, 106498, C07D48704

Patent

active

047835400

ABSTRACT:
A solid solution of 1,4-diketopyrrolo-[3,4-c]-pyrrols consisting of two different compounds of the formulae ##STR1## the formulae ##STR2## or the formulae ##STR3## wherein A is one of the groups ##STR4## and B, E and D are each independently a group ##STR5## where R.sub.1 and R.sub.2 are each independently hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -alkoxy, --SR.sub.3, --N(R.sub.3).sub.2,--CF.sub.3,--CN, a group ##STR6## R.sub.3 is C.sub.1 -C.sub.5 -alkyl and R.sub.4 and R.sub.5 are each independently hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -alkoxy,--SR.sub.3 or--CN having X-ray diffraction patterns which differ from the sum of the X-ray diffraction patterns of the individual components.
Such solid solutions are excellently suited as pigments for the coloration of high molecular organic material.

REFERENCES:
patent: 4415685 (1983-11-01), Iqbal et al.
patent: 4579949 (1986-01-01), Rochat et al.
patent: 4659775 (1987-04-01), Pfenninger et al.
patent: 4720305 (1987-11-01), Iqbal et al.
C. A., 105, 210422b (1986).

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