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Sulfonated diarylrhodamine dyes

  • US 7,018,431 B2
  • Filed: 06/24/2003
  • Issued: 03/28/2006
  • Est. Priority Date: 11/25/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A sulfonated diarylrhodamine dye comprising a compound of the structure:

  • embedded imagewherein R2, R2′

    , R12 and R12′

    when taken alone are each independently selected from hydrogen, C1-C12 alkyl, C1-C12 substituted alkyl, C1-C12 alkyldiyl, C1-C12 substituted alkyldiyl, phenyl, substituted phenyl, benzyl, substituted benzyl, biphenyl, substituted biphenyl, naphthyl, substituted naphthyl, heterocycle, substituted heterocycle, water-solubilizing group or linking moiety,R2 when taken together with R1 forms a ring structure having from 4 to 7 ring members optionally substituted by one or more of C1-C12 alkyl, C1-C12 substituted alkyl, C1-C12 alkyldiyl, C1-C12 substituted alkyldiyl, phenyl, substituted phenyl, benzyl, substituted benzyl, biphenyl, substituted biphenyl, naphthyl, substituted naphthyl, heterocycle, substituted heterocycle, water-solubilizing group or linking moiety, R2′

    when taken together with R1 forms a ring structure having from 4 to 7 ring members optionally substituted by one or more of C1-C12 alkyl, C1-C12 substituted alkyl, C1-C12 alkyldiyl, C1-C12 substituted alkyldiyl, phenyl, substituted phenyl, benzyl, substituted benzyl, biphenyl, substituted biphenyl, naphthyl, substituted naphthyl, heterocycle, substituted heterocycle, water-solubilizing group or linking moiety, R12 when taken together with R13 forms a ring structure having from 4 to 7 ring members optionally substituted by one or more of C1-C12 alkyl, C1-C12 substituted alkyl, C1-C12 alkyldiyl, C1-C12 substituted alkyldiyl, phenyl, substituted phenyl, benzyl, substituted benzyl, biphenyl, substituted biphenyl, naphthyl, substituted naphthyl, heterocycle, substituted heterocycle, water-solubilizing group or linking moiety, R12′

    when taken together with R13 forms a ring structure having from 4 to 7 ring members optionally substituted by one or more of C1-C12 alkyl, C1-C12 substituted alkyl, C1-C12 alkyldiyl, C1-C12 substituted alkyldiyl, phenyl, substituted phenyl, benzyl, substituted benzyl, biphenyl, substituted biphenyl, naphthyl, substituted naphthyl, heterocycle, substituted heterocycle, water-solubilizing group or linking moiety, R2 when taken together with R3 forms a ring structure having from 5 to 7 ring members optionally substituted by one or more of C1-C12 alkyl, C1-C12 substituted alkyl, C1-C12 alkyldiyl, C1-C12 substituted alkyldiyl, phenyl, substituted phenyl, benzyl, substituted benzyl, biphenyl, substituted biphenyl, naphthyl, substituted naphthyl, heterocycle, substituted heterocycle, water-solubilizing group or linking moiety, R2 when taken together with R3 forms a ring structure having from 5 to 7 ring members optionally substituted by one or more of C1-C12 alkyl, C1-C12 substituted alkyl, C1-C12 alkyldiyl, C1-C12 substituted alkyldiyl, phenyl, substituted phenyl, benzyl, substituted benzyl, biphenyl, substituted biphenyl, naphthyl, substituted naphthyl, heterocycle, substituted heterocycle, water-solubilizing group or linking moiety, R12 when taken together with R11 forms a ring structure having from 5 to 7 ring members optionally substituted by one or more of C1-C12 alkyl, C1-C12 substituted alkyl, C1-C12 alkyldiyl, C1-C12 substituted alkyldiyl, phenyl, substituted phenyl, benzyl, substituted benzyl, biphenyl, substituted biphenyl, naphthyl, substituted naphthyl, heterocycle, substituted heterocycle, water-solubilizing group or linking moiety, R12′

    when taken together with RR11 forms a ring structure having from 5 to 7 ring members optionally substituted by one or more of C1-C12 alkyl, C1-C12 substituted alkyl, C1-C12 alkyldiyl, C1-C12 substituted alkyldiyl, phenyl, substituted phenyl, benzyl, substituted benzyl, biphenyl, substituted biphenyl, naphthyl, substituted naphthyl, heterocycle, substituted heterocycle, water-solubilizing group or linking moiety, and R1, R3, R4, R5, R6, R8, R11, R13, R14, R15, R16, R17, R18, R19, R20, and R21 are each independently selected from hydrogen, fluorine, chlorine, C1-C8 alkyl, carboxylate, sulfate, sulfonate, alkylsulfonate, aminomethyl (—

    CH2NH2), aminoalkyl, 4-dialkylaminopyridinium, hydroxymethyl (—

    CH2OH), methoxy (—

    OCH3), hydroxyalkyl (—

    ROH), thiomethyl (—

    CH2SH), thioalkyl (—

    RSH), alkylsulfone (—

    SO2R), arylthio (—

    SAr), arylsulfone (—

    SO2Ar), sulfonamide (—

    SO2NR2), alkylsulfoxide (—

    SOR), arylsulfoxide (—

    SOAr), amino (—

    NH2), ammonium (—

    NH3+), amido (—

    CONR2), nitrile (—

    CN), C1-C8 alkoxy (—

    OR), phenoxy, phenolic, tolyl, phenyl, aryl, benzyl, heterocycle, phosphonate, phosphate, quaternary amine, sulfate, polyethyleneoxy, water-solubilizing group, or linking moiety;

    wherein at least one of R1, R3, R4, R5, R6, R8, R9, R13, R14, R15, R16, R17, R18, R19, R20, and R21 is sulfonate.

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