GB748884A - Process for the production of fluorescent compounds - Google Patents

Process for the production of fluorescent compounds

Info

Publication number
GB748884A
GB748884A GB1558/53A GB155853A GB748884A GB 748884 A GB748884 A GB 748884A GB 1558/53 A GB1558/53 A GB 1558/53A GB 155853 A GB155853 A GB 155853A GB 748884 A GB748884 A GB 748884A
Authority
GB
United Kingdom
Prior art keywords
amino
coumarin
water
sultone
aminopyrene
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
GB1558/53A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB748884A publication Critical patent/GB748884A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching

Landscapes

  • Luminescent Compositions (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

Easily water-soluble fluorescent compounds are obtained when a difficultly water-soluble fluorescent amine which contains in the amino group at least one hydrogen atom linked to the nitrogen atom is reacted with an aliphatic sultone containing at least 3 carbon atoms per molecule. The emission wavelength of the amines lies between 380 and 780 mm with water as a solvent. Specified sultones are propane sultone and 1,3-, 1,4- and 2,4-butane sultone. Fluorescent amines free of sulphonic or carboxylic acid groups are particularly referred to, those mentioned being of the benzthiazole, benzimidazole, benztriazole, coumarin, quinoline and pyrene series. The reaction is preferably effected at elevated temperature. The products are optical bleaching agents. In examples a mixture of 1,3- and 1,4-butane sultones is reacted with (1) 2-(41-aminophenyl)-5-methylbenzthiazole, (2)5-amino-2-phenylbenztriazole, (3) 7-amino-4-methyl-coumarin, (4) 7-ethylamino - 4 - methyl - coumarin, (5) bis-(benzimidazolyl - 2) - ethylene, (6) 2 - aminopyrene, (7) 7 - amino - 2 - hydroxylepidine, (8) the sodium salt of bis 4,41-(p-aminobenzoyl-p-aminobenzoyl) - aminostilbene - 2,21 - disulphonic acid and (9) 3-aminopyrene.
GB1558/53A 1952-01-19 1953-01-19 Process for the production of fluorescent compounds Expired GB748884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE748884X 1952-01-19

Publications (1)

Publication Number Publication Date
GB748884A true GB748884A (en) 1956-05-16

Family

ID=6649102

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1558/53A Expired GB748884A (en) 1952-01-19 1953-01-19 Process for the production of fluorescent compounds

Country Status (1)

Country Link
GB (1) GB748884A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028253A (en) * 1962-04-03 X c chj
US3244724A (en) * 1961-01-25 1966-04-05 Armour & Co Sulfoalkylated imidazolines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028253A (en) * 1962-04-03 X c chj
US3244724A (en) * 1961-01-25 1966-04-05 Armour & Co Sulfoalkylated imidazolines

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