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Core-extended perylene bisimides

  • US 6,491,749 B1
  • Filed: 03/20/2001
  • Issued: 12/10/2002
  • Est. Priority Date: 10/21/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. A nucleus-extended perylenebisimide of general formula (I) embedded imagewhereinR1 and R2 are each independently of the other secondary alkyl radical of the formula 1-(C1-C9alkyl)-C2-C10alkyl, C1-C24cycloalkyl, or C6-C10aryl, and A1 is —

  • S—

    , —

    S—

    S—

    , -CH═

    CH—

    , R3OOC—

    C(—

    )═

    C(—

    )—

    COOR3, —

    N═

    N—

    or —

    N(R4)—

    , or a linkage selected from the group consisting of the organic radicals of formulae (III), (IV), (V), (VI) and (VII) embedded image

    wherein R3 is hydrogen, C1-C24 alkyl or C1-C24cycloalkyl, and R4 is unsubstituted or substituted C1-C24alkyl, C1-C24cycloalkyl, phenyl, benzyl, -CO-C1-C4alkyl, -CO-C6H5 or C1-C4alkylcarboxylic acid (C1-C4alkyl) ester. with the proviso that when Al is —

    s—

    , then either R1 or R2 is not a phenyl group.

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