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ES404970A1 - Procedure for the preparation of acid nitrogen colorants. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the preparation of acid nitrogen colorants. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES404970A1
ES404970A1 ES404970A ES404970A ES404970A1 ES 404970 A1 ES404970 A1 ES 404970A1 ES 404970 A ES404970 A ES 404970A ES 404970 A ES404970 A ES 404970A ES 404970 A1 ES404970 A1 ES 404970A1
Authority
ES
Spain
Prior art keywords
formula
translation
procedure
preparation
machine
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
ES404970A
Other languages
Spanish (es)
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.)
Novartis AG
Original Assignee
Ciba Geigy 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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of ES404970A1 publication Critical patent/ES404970A1/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
    • C09B51/00—Nitro or nitroso dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

Procedure for the preparation of nitrous acid dyes of the formula **(See formula)** in which R1 signifies a cycloalkyl, aryl, aralkyl or alkyl group and R2 signifies hydrogen or one of the radicals indicated for R1 or R1 and R2 form, with the nitrogen atom, a pentagonal or hexagonal heterocyclic ring; Z represents hydrogen or a NO2 group; and one of the Y is a SO3H group, while the other Y is hydrogen, characterized by reacting, in the presence of acid accepting agents, p-aminodiphenylamino-sulfonic acid of the formula **(See formula)** in which Y and Z have the same meaning as before, with nitrobenzoamide compounds of the formula **(See formula)** in which R1 and R2 have the same meaning as attributed to them before, while A represents a changeable substituent, in particular a halogen atom or a methoxy group. (Machine-translation by Google Translate, not legally binding)
ES404970A 1971-07-20 1972-07-19 Procedure for the preparation of acid nitrogen colorants. (Machine-translation by Google Translate, not legally binding) Expired ES404970A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1065171 1971-07-20
CH559672 1972-04-14

Publications (1)

Publication Number Publication Date
ES404970A1 true ES404970A1 (en) 1975-07-01

Family

ID=25698059

Family Applications (1)

Application Number Title Priority Date Filing Date
ES404970A Expired ES404970A1 (en) 1971-07-20 1972-07-19 Procedure for the preparation of acid nitrogen colorants. (Machine-translation by Google Translate, not legally binding)

Country Status (4)

Country Link
BE (1) BE786446A (en)
DE (1) DE2235250A1 (en)
ES (1) ES404970A1 (en)
FR (1) FR2146350A1 (en)

Also Published As

Publication number Publication date
FR2146350A1 (en) 1973-03-02
BE786446A (en) 1973-01-19
DE2235250A1 (en) 1973-01-25

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