GB514531A - Manufacture of triarylmethane dyestuffs - Google Patents

Manufacture of triarylmethane dyestuffs

Info

Publication number
GB514531A
GB514531A GB1379638A GB1379638A GB514531A GB 514531 A GB514531 A GB 514531A GB 1379638 A GB1379638 A GB 1379638A GB 1379638 A GB1379638 A GB 1379638A GB 514531 A GB514531 A GB 514531A
Authority
GB
United Kingdom
Prior art keywords
methyl
carboxylic acid
group
chlor
prepared
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
GB1379638A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1379638A priority Critical patent/GB514531A/en
Publication of GB514531A publication Critical patent/GB514531A/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
    • C09B11/00Diaryl- or thriarylmethane dyes
    • C09B11/04Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/26Triarylmethane dyes in which at least one of the aromatic nuclei is heterocyclic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Indole Compounds (AREA)

Abstract

514,531. Dyes ; intermediates. GROVES, W. W. (I.G. Farbenindustrie Akt.-Ges.). May 9, 1938, No. 13796. [Class 2 (iii)] Triarylmethane dyestuffs, which dye wool from an acid bath greenish shades, are prepared by condensing a 4<1> - halogenbenzophenone-3- hydroxy - 4 - carboxylic acid with an alpha-arylindol, sulphonating the condensation product simultaneously with the condensation or in a separate operation and then exchanging the halogen atom for the residue of a primary or secondary aromatic amine. Alternatively, the sulphonation may be performed after the exchange of the halogen atom for the amine residue. In examples: (1) 4<1>-chlor-3-hydroxybenzophenone-4-carboxylic acid is condensed with 1-methyl-2-phenylindol, sulphonated and reacted with p-phenetidine or N-methyl-pphenetidine; (2) 4<1>-chlor-3-hydroxybenzophenone-4-carboxylic acid is condensed with 1-isobutyl-2-p-chlorphenyl-4 : 6-dimethylindol, sulphonated and reacted with N-methyl-panisidine. The 4<1>-chlorbenzophenone compounds may be replaced by the corresponding 4<1>-brom compounds. The dyestuffs may be converted into complex metal compounds. 4<1>-chlorbenzophenone-3-hydroxy-4-carboxylic acid may be prepared by condensing 3-nitro-4- toluic acid chloride with chlorbenzene to give 4<1>-chlor-3-nitro-4-methylbenzophenone, the nitro group of which is then reduced and acetylated. The methyl group is oxidized with potassium permanganate, the acetyl group removed by saponification and the amino group replaced by a hydroxy group. The 4<1>-brombenzophenone may .be prepared in a similar manner.
GB1379638A 1938-05-09 1938-05-09 Manufacture of triarylmethane dyestuffs Expired GB514531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1379638A GB514531A (en) 1938-05-09 1938-05-09 Manufacture of triarylmethane dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1379638A GB514531A (en) 1938-05-09 1938-05-09 Manufacture of triarylmethane dyestuffs

Publications (1)

Publication Number Publication Date
GB514531A true GB514531A (en) 1939-11-10

Family

ID=10029530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1379638A Expired GB514531A (en) 1938-05-09 1938-05-09 Manufacture of triarylmethane dyestuffs

Country Status (1)

Country Link
GB (1) GB514531A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0162685A2 (en) * 1984-05-21 1985-11-27 EASTMAN KODAK COMPANY (a New Jersey corporation) Compositions and elements containing triarylmethane leuco dyes and methods using same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0162685A2 (en) * 1984-05-21 1985-11-27 EASTMAN KODAK COMPANY (a New Jersey corporation) Compositions and elements containing triarylmethane leuco dyes and methods using same
EP0162685A3 (en) * 1984-05-21 1988-01-13 Eastman Kodak Company Compositions and elements containing triarylmethane leuco dyes and methods using same

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