GB638047A - Improvements in or relating to merocyanine dyestuffs - Google Patents

Improvements in or relating to merocyanine dyestuffs

Info

Publication number
GB638047A
GB638047A GB1505248A GB1505248A GB638047A GB 638047 A GB638047 A GB 638047A GB 1505248 A GB1505248 A GB 1505248A GB 1505248 A GB1505248 A GB 1505248A GB 638047 A GB638047 A GB 638047A
Authority
GB
United Kingdom
Prior art keywords
thio
ketotetrahydrothiazole
ethyl
tetramethinemerocyanine
iodide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1505248A
Inventor
John David Kendall
Frank Peter Doyle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ilford Imaging UK Ltd
Original Assignee
Ilford Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ilford Ltd filed Critical Ilford Ltd
Priority to GB1505248A priority Critical patent/GB638047A/en
Publication of GB638047A publication Critical patent/GB638047A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/12Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain being branched "branched" means that the substituent on the polymethine chain forms a new conjugated system, e.g. most trinuclear cyanine dyes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/10The polymethine chain containing an even number of >CH- groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

Trinuclear polymethine merocyanine dyes are prepared by reacting a compound of the general formula <FORM:0638047/IV (c)/1> wherein R1 is an alkyl, hydroxyalkyl, acyloxyalkyl, aralkyl, hydroxyaralkyl, or acyloxyaralkyl group, R2 is H or a hydrocarbon group, R3 is an alkyl or aralkyl group, X is an acid radical, Q is O or S, n is 0 or 1, and D1 is the residue of a 5- or 6-membered heterocyclic nitrogen nucleus, with a heterocyclic nitrogen compound containing a reactive methylene group. [2 - (3 - Ethylbenzthiazole) - 51 - (3-ethyl-2-thio - 4 - ketotetrahydrothiazole) - g .211 - (1-ethylquinoline) - tetramethinemerocyanine] iodide is prepared by boiling 1-ethylthio-2-a -quinolyl-3-(31 - ethyl - 21 - thio - 41 - ketotetrahydrothiazolylidene)-propene ethiodide and 2-methylbenzthiazole ethiodide in pyridine. [2-(3-Ethylbenzthiazole) - 51 - (3 - ethyl - 2 - thio - 4 - ketotetrahydrothiazole) - g .211 - (1 : 3 : 3 - trimethylindolenine) - tetramethinemerocyanine] iodide, [2-(3-ethylbenzthiazole) - 51 - (3 - methyl - 2 - thio - 4 - ketotetrahydrothiazole) - g .211 - (3 - ethylbenzoxazole) - tetramethinemerocyanine] iodide, [2 - (1-ethylquinoline) - 51 - (3 - ethyl - 2 - thio - 4 - ketotetrahydrothiazole) - g .211 - (1 - ethylquinoline)-tetramethinemerocyanine] iodide, and bis - 5-(3-ethyl - 2 - thio - 4 - ketotetrahydrothiazole) - b - 21-(1 - ethyldihydroquinoline) - trimethinemerocyanine are similarly prepared. Specifications 549,202 and 638,021 are referred to.
GB1505248A 1947-06-04 1947-06-04 Improvements in or relating to merocyanine dyestuffs Expired GB638047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1505248A GB638047A (en) 1947-06-04 1947-06-04 Improvements in or relating to merocyanine dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1505248A GB638047A (en) 1947-06-04 1947-06-04 Improvements in or relating to merocyanine dyestuffs

Publications (1)

Publication Number Publication Date
GB638047A true GB638047A (en) 1950-05-31

Family

ID=10052189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1505248A Expired GB638047A (en) 1947-06-04 1947-06-04 Improvements in or relating to merocyanine dyestuffs

Country Status (1)

Country Link
GB (1) GB638047A (en)

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