GB660408A - Improvements in or relating to cyanine dyes - Google Patents

Improvements in or relating to cyanine dyes

Info

Publication number
GB660408A
GB660408A GB1063149A GB1063149A GB660408A GB 660408 A GB660408 A GB 660408A GB 1063149 A GB1063149 A GB 1063149A GB 1063149 A GB1063149 A GB 1063149A GB 660408 A GB660408 A GB 660408A
Authority
GB
United Kingdom
Prior art keywords
alkyl
prepared
aralkyl
cyanine dyes
methiodide
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
GB1063149A
Inventor
John David Kendall
Douglas James Fry
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 GB1063149A priority Critical patent/GB660408A/en
Publication of GB660408A publication Critical patent/GB660408A/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
    • C09B23/02Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • C09B23/04Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups one >CH- group, e.g. cyanines, isocyanines, pseudocyanines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Thiazole And Isothizaole Compounds (AREA)
  • Cosmetics (AREA)

Abstract

Meso-substituted cyanine dyes are prepared by reacting an alkyl or aralkyl quaternary salt of a benzthiazole containing a thioether grouping in the 2-position with an alkyl or aralkyl quaternary salt of a benzthiazole containing an alkyl-or aralkyl-substituted methyl group in the 2-position, in the presence of a strong base, which is substantially stronger than pyridine and should be at least as strong as triethylamine. Sodium ethoxide may be used. 3 : 31 : 8-Trimethylcyanine iodide is prepared by boiling together in alcohol 2-ethylbenzthiazole methiodide, 2-methylthiobenzthiazole methiodide, and sodium ethoxide or triethylamine. 3 : 31 - Diethyl - 8 - methylthiacyanine iodide is similarly prepared. Specification 424,559 is referred to.
GB1063149A 1949-04-21 1949-04-21 Improvements in or relating to cyanine dyes Expired GB660408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1063149A GB660408A (en) 1949-04-21 1949-04-21 Improvements in or relating to cyanine dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1063149A GB660408A (en) 1949-04-21 1949-04-21 Improvements in or relating to cyanine dyes

Publications (1)

Publication Number Publication Date
GB660408A true GB660408A (en) 1951-11-07

Family

ID=9971435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1063149A Expired GB660408A (en) 1949-04-21 1949-04-21 Improvements in or relating to cyanine dyes

Country Status (1)

Country Link
GB (1) GB660408A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232118A (en) * 1978-03-10 1980-11-04 Konishiroku Photo Industry Co., Ltd. Light-sensitive silver halide photographic material
US5082765A (en) * 1986-04-04 1992-01-21 Konica Corporation Method of processing light-sensitive silver halide photographic material
US6593172B2 (en) * 2001-05-10 2003-07-15 International Rectifier Corporation Design and processing of antifuse structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232118A (en) * 1978-03-10 1980-11-04 Konishiroku Photo Industry Co., Ltd. Light-sensitive silver halide photographic material
US5082765A (en) * 1986-04-04 1992-01-21 Konica Corporation Method of processing light-sensitive silver halide photographic material
US6593172B2 (en) * 2001-05-10 2003-07-15 International Rectifier Corporation Design and processing of antifuse structure

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