GB263879A - Manufacture of dyestuffs of the triarylmethane series - Google Patents

Manufacture of dyestuffs of the triarylmethane series

Info

Publication number
GB263879A
GB263879A GB127/27A GB12727A GB263879A GB 263879 A GB263879 A GB 263879A GB 127/27 A GB127/27 A GB 127/27A GB 12727 A GB12727 A GB 12727A GB 263879 A GB263879 A GB 263879A
Authority
GB
United Kingdom
Prior art keywords
cresotinic
mol
mols
dyestuffs
acid
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
GB127/27A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB263879A publication Critical patent/GB263879A/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
    • C09B11/22—Amino derivatives of triarylmethanes containing OH groups bound to an aryl nucleus and their ethers and esters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Lasers (AREA)

Abstract

263,879. I. G. Farbenindustrie Akt.- Ges. Jan. 2, 1926, [Convention date]. Triarylmethane dyes.-Water soluble chrome dyestuffs of the triarylmethane series are produced by treating substituted aryldi-0-cresotinicacid carbinol with a normal sulphite. In examples. p-(4-tolyamino)-phenyldi-o-cresotinic acidcarbinol and p-(6-chlor-2-tolylamino)-phenyldi-o-cresotinic acidcarbinol are heated with crystallized sodium sulphite in the presence of water and, if necessary filtered. On acidifying the solution the original carbinol is reprecipitated. In other examples the dyestuff made from 2 mols. of o. cresotinic acid, 1 mol. p-chlorbenzaldehyde and J. mol. of 1-chlor-2-naphthylamine and that from 2 mols. o-cresotinic acid, 1 mol. of p-chlorbenzaldehyde and 1 mol. of pyridine are heated with crystallized sodium sulphite in the presence of water and in further examples the dyestuffs made by coupling 1 molecular proportion each of o, o<1>- dichlorbenzaldehyde, o, o<1>-dichlor-m-hydroxybenzaldehyde, 2:4: 6-tribrom-3-hydroxybenzaldehyde and the hydroxynaphthaldehyde disulphonic acid obtainable according to example 2 of Specification 19408/97 with 2 mols. of o-cresotinic acid are treated with sodium sulphite in the same way. Specifications 15204/07, 12130/10, and 237,096 also are referred to.
GB127/27A 1926-01-02 1926-01-03 Manufacture of dyestuffs of the triarylmethane series Expired GB263879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE263879X 1926-01-02

Publications (1)

Publication Number Publication Date
GB263879A true GB263879A (en) 1927-07-28

Family

ID=5986585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB127/27A Expired GB263879A (en) 1926-01-02 1926-01-03 Manufacture of dyestuffs of the triarylmethane series

Country Status (1)

Country Link
GB (1) GB263879A (en)

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