GB165658A - A process for the manufacture of new triphenyl-methane colouring matters - Google Patents

A process for the manufacture of new triphenyl-methane colouring matters

Info

Publication number
GB165658A
GB165658A GB1703820A GB1703820A GB165658A GB 165658 A GB165658 A GB 165658A GB 1703820 A GB1703820 A GB 1703820A GB 1703820 A GB1703820 A GB 1703820A GB 165658 A GB165658 A GB 165658A
Authority
GB
United Kingdom
Prior art keywords
triphenyl
methane
manufacture
new
colouring matters
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
GB1703820A
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.)
GEORGE ROGER CLEMO
Imperial Chemical Industries Ltd
Original Assignee
GEORGE ROGER CLEMO
British Dyestuffs Corp 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 GEORGE ROGER CLEMO, British Dyestuffs Corp Ltd filed Critical GEORGE ROGER CLEMO
Priority to GB1703820A priority Critical patent/GB165658A/en
Publication of GB165658A publication Critical patent/GB165658A/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
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/10—Amino derivatives of triarylmethanes
    • C09B11/12—Amino derivatives of triarylmethanes without any OH group bound to an aryl nucleus
    • C09B11/14—Preparation from aromatic aldehydes, aromatic carboxylic acids or derivatives thereof and aromatic amines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

Triarylmethane dyes are obtained by condensing 2 : 4 - dichlor - 5 - nitrobenzaldehyde or 2 : 4 : 5-trichlorbenzaldehyde with a monoalkyl-o-toluidine and oxidizing the resulting leuco compounds. According to examples 2 : 4 : 5 - trichlorbenzaldehyde is condensed with monomethyl o-toluidine in alcoholic solution in the presence of sulphuric acid and the leuco compound oxidized to the dye with lead peroxide. The products are basic dyes dyeing pure greenish-blue shades.
GB1703820A 1920-06-23 1920-06-23 A process for the manufacture of new triphenyl-methane colouring matters Expired GB165658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1703820A GB165658A (en) 1920-06-23 1920-06-23 A process for the manufacture of new triphenyl-methane colouring matters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1703820A GB165658A (en) 1920-06-23 1920-06-23 A process for the manufacture of new triphenyl-methane colouring matters

Publications (1)

Publication Number Publication Date
GB165658A true GB165658A (en) 1921-07-07

Family

ID=10088120

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1703820A Expired GB165658A (en) 1920-06-23 1920-06-23 A process for the manufacture of new triphenyl-methane colouring matters

Country Status (1)

Country Link
GB (1) GB165658A (en)

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