Fluorescent diketopyrrolopyrrole analogues

Details Fluorescent diketopyrrolopyrrole analogues Fluorescent diketopyrrolopyrrole analogues

2006-05-09

2006-05-09

Koslow, C. Melissa (Department: 1755)

Compositions

Organic luminescent material containing compositions

C252S301350, C252S301340, C252S301220, C252S301210, C252S301270, C546S276700, C548S515000, C548S452000, C544S143000, C544S333000, C544S362000

Reexamination Certificate

active

07041235

ABSTRACT:
The present invention relates to fluorescent diketopyrrolopyrrole analogues of the general formula (I), wherein A1and A2are C1–C18alkyl, C2–C18alkenyl, C2–C18alkynyl, C5–C8cycloalkyl, C5–C8cycloalkenyl, aryl or heteroaryl, A3and A4are independently of each other C1–C18alkyl, Ar3, —CR30R31—(CH2)m—Ar3, or Y—R32, wherein R30and R31independently of each other stand for hydrogen or C1–C4alkyl, or phenyl which can be substituted up to three times with C1–C3alkyl, Ar3stands for aryl, in particular phenyl or 1- or 2-naphthyl, C5–C8cycloalkyl, in particular cyclohexyl, or heteroaryl, which can be substituted one to three times with C1–C8alkyl, C1–C8alkoxy, halogen or phenyl, which can be substituted with C1–C8alkyl or C1–C8alkoxy one to three times, and m stands for 0, 1, 2, 3 or 4, Y is C(O)— or SO2— and R32is C1–C18alkyl, Ar3, or aralkyl and A3can additionally be hydrogen, C1–C8alkyloxycarbonyl, such as tertbutoxycarbonyl, or aralkyloxycarbonyl, such as benzyloxycarbonyl, a process for their preparation and their use for the preparation of inks, colourants, pigmented plastics for coatings, non-impact printing material, colour filters, cosmetics, polymeric ink particles, toners, dye lasers and electroluminescent devices, or as fluorescent markers for immunoassays and fluorescent tracers for leak detection of fluids. The diketopyrrolopyrrole analogues of the general formula I show a high solid state fluorescence

REFERENCES:
patent: 5616725 (1997-04-01), Zambounis et al.
patent: 5969154 (1999-10-01), Hao et al.
patent: 6603020 (2003-08-01), Moretti et al.
Patent Abstracts of Japan Publication No. 03011357 (1991).

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