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
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)
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) |
-
0
- BE BE786446D patent/BE786446A/en unknown
-
1972
- 1972-07-18 FR FR7225872A patent/FR2146350A1/en not_active Withdrawn
- 1972-07-18 DE DE19722235250 patent/DE2235250A1/en active Pending
- 1972-07-19 ES ES404970A patent/ES404970A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE786446A (en) | 1973-01-19 |
FR2146350A1 (en) | 1973-03-02 |
DE2235250A1 (en) | 1973-01-25 |
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