GB926978A - Process for the halogenation of phthalocyanines - Google Patents

Process for the halogenation of phthalocyanines

Info

Publication number
GB926978A
GB926978A GB2982061A GB2982061A GB926978A GB 926978 A GB926978 A GB 926978A GB 2982061 A GB2982061 A GB 2982061A GB 2982061 A GB2982061 A GB 2982061A GB 926978 A GB926978 A GB 926978A
Authority
GB
United Kingdom
Prior art keywords
bromide
chloride
metal
friedel
aluminium
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
GB2982061A
Inventor
John Dewar Stewart
Kenneth Gibson Hargreaves
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.)
Geigy Co Ltd
Original Assignee
Geigy Co 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 Geigy Co Ltd filed Critical Geigy Co Ltd
Priority to GB2982061A priority Critical patent/GB926978A/en
Priority to CH976562A priority patent/CH424045A/en
Priority to DEG35734A priority patent/DE1254787B/en
Publication of GB926978A publication Critical patent/GB926978A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B47/00—Porphines; Azaporphines
    • C09B47/04—Phthalocyanines abbreviation: Pc
    • C09B47/08—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex
    • C09B47/10—Obtaining compounds having halogen atoms directly bound to the phthalocyanine skeleton

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Optical Filters (AREA)

Abstract

A metal-free or a complex metal phthalocyanine is chlorinated or chlorinated and brominated by reaction with pyrosulphuryl chloride in a melt composed essentially of a Friedel-Crafts catalyst. An inorganic salt, thionyl chloride and a halogen carrier such as sulphur monochloride may also be present. Friedel-Crafts catalysts mentioned are aluminium chloride, aluminium bromide, ferric chloride, zinc chloride and antimony trichloride. Chlorination occurs unless an alkali-metal bromide, ammonium bromide, cuprous bromide or a bromide of a Group II metal of the Periodic Table such as calcium or magnesium bromide is present and/or unless aluminium bromide is used as the Friedel-Crafts catalyst when chlorination and bromination occurs. Examples are given.
GB2982061A 1961-08-18 1961-08-18 Process for the halogenation of phthalocyanines Expired GB926978A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2982061A GB926978A (en) 1961-08-18 1961-08-18 Process for the halogenation of phthalocyanines
CH976562A CH424045A (en) 1961-08-18 1962-08-15 Process for the halogenation of phthalocyanines
DEG35734A DE1254787B (en) 1961-08-18 1962-08-17 Process for the halogenation of phthalocyanines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2982061A GB926978A (en) 1961-08-18 1961-08-18 Process for the halogenation of phthalocyanines

Publications (1)

Publication Number Publication Date
GB926978A true GB926978A (en) 1963-05-22

Family

ID=10297709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2982061A Expired GB926978A (en) 1961-08-18 1961-08-18 Process for the halogenation of phthalocyanines

Country Status (3)

Country Link
CH (1) CH424045A (en)
DE (1) DE1254787B (en)
GB (1) GB926978A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862929A (en) * 1955-03-18 1958-12-02 Ciba Ltd Process for halogenating compounds having a tetraza-porphin structure

Also Published As

Publication number Publication date
CH424045A (en) 1966-11-15
DE1254787B (en) 1967-11-23

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