SU121892A1 - The method of obtaining 4,41-diarylamino-triphenylmethane dyes, derivatives of m-aminobenzoic acid - Google Patents
The method of obtaining 4,41-diarylamino-triphenylmethane dyes, derivatives of m-aminobenzoic acidInfo
- Publication number
- SU121892A1 SU121892A1 SU616887A SU616887A SU121892A1 SU 121892 A1 SU121892 A1 SU 121892A1 SU 616887 A SU616887 A SU 616887A SU 616887 A SU616887 A SU 616887A SU 121892 A1 SU121892 A1 SU 121892A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- derivatives
- aminobenzoic acid
- diarylamino
- obtaining
- triphenylmethane dyes
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Эти красители, в том числе и зеленый противоореольный Ф2, получаютс взаимодействием 4,4-диметокситрифенилкарбинола с соответствующим ароматическим амином при повышенной температуре в присутствии бензойной -кислоты (или реже -избытка амина). Избыток амина примен етс Joлькo дл жидких или низкоплавких веществ, применение же бензойной кислоты сильно осложн ет стадию выделени и очистки красител . Присутствие не полностью удаленной бензойной кислоты отрицательно сказываетс на свойствах красител .These dyes, including green anti-aorol F2, are obtained by reacting 4,4-dimethoxytriphenylcarbinol with the corresponding aromatic amine at elevated temperature in the presence of benzoic acid (or, less often, excess amine). An excess of amine is used only for liquid or low-melting substances, while the use of benzoic acid makes the isolation and purification of the dye very difficult. The presence of benzoic acid not completely removed adversely affects the properties of the dye.
Найден способ получени 4,4-диариламинотрифенилметановых красителей , производных 7Н-аминобензоЙ1юй кислоты, взаимодействием соответствующих 4,4-диметокситрифепилметановых производных с и1-аминобензойной кислотой и ее производными, не содержащими заместителей в ортоположении к аминогруппе, заключающийс в том, что, с цепью упрощени процесса и улучшени выхода красителей, реакцию провод т в среде расплавленного уксуснокислого натри при 130-145°, после чего уксуснокислый натрий раствор ют гор чей водой и затем краситель очищают обычным способом.A method has been found for the preparation of 4,4-diarylaminotriphenylmethane dyes, derivatives of 7H-aminobenzoic acid, by the interaction of the corresponding 4,4-dimethoxytripepylmethane derivatives with Il-aminobenzoic acid and its derivatives, which do not contain substituents in the ortho position of the amino group, which is present in the composition, containing no crosshairs, consisting of a group, consisting of 4, 4-dimethoxytriphenylmethane derivatives and 1-aminobenzoic acid and its derivatives, which do not contain substituents in the ortho position of the amino group. process and improve the yield of dyes, the reaction is carried out in molten sodium acetate at 130-145 °, after which sodium acetate is dissolved with hot water and then the dye is cleaned with ordinary in a way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU616887A SU121892A1 (en) | 1959-01-17 | 1959-01-17 | The method of obtaining 4,41-diarylamino-triphenylmethane dyes, derivatives of m-aminobenzoic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU616887A SU121892A1 (en) | 1959-01-17 | 1959-01-17 | The method of obtaining 4,41-diarylamino-triphenylmethane dyes, derivatives of m-aminobenzoic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU121892A1 true SU121892A1 (en) | 1959-11-30 |
Family
ID=48393647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU616887A SU121892A1 (en) | 1959-01-17 | 1959-01-17 | The method of obtaining 4,41-diarylamino-triphenylmethane dyes, derivatives of m-aminobenzoic acid |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU121892A1 (en) |
-
1959
- 1959-01-17 SU SU616887A patent/SU121892A1/en active
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