GB301423A - Process for the manufacture of monoazo dyestuffs - Google Patents

Process for the manufacture of monoazo dyestuffs

Info

Publication number
GB301423A
GB301423A GB34784/28A GB3478428A GB301423A GB 301423 A GB301423 A GB 301423A GB 34784/28 A GB34784/28 A GB 34784/28A GB 3478428 A GB3478428 A GB 3478428A GB 301423 A GB301423 A GB 301423A
Authority
GB
United Kingdom
Prior art keywords
manufacture
naphthylamine
carboxylic acid
monoazo dyestuffs
sulphonic 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
GB34784/28A
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 GB301423A publication Critical patent/GB301423A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group

Landscapes

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

Abstract

301,423. I. G. Farbenindustrie Akt.-. Ges. Nov. 29, 1927, [Convention date]. Monoazo dyes are made by combining a non- nitrated o-diazophenol sulphonic acid or a halogen derivative thereof with 2-naphthylamine-3-carboxylic acid. When chromed on the fibre green shades are obtained. In an example, diazotized 4 - chloro-2-amino-phenol - 6 - sulphonic acid is coupled with 2-naphthylamine-3-carboxylic acid in the presence of pyridine and the ammonium salt prepared.
GB34784/28A 1927-11-29 1928-11-26 Process for the manufacture of monoazo dyestuffs Expired GB301423A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE301423X 1927-11-29

Publications (1)

Publication Number Publication Date
GB301423A true GB301423A (en) 1930-02-26

Family

ID=6099925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34784/28A Expired GB301423A (en) 1927-11-29 1928-11-26 Process for the manufacture of monoazo dyestuffs

Country Status (1)

Country Link
GB (1) GB301423A (en)

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