RU93020051A - METHOD OF OBTAINING NITROGENES CONTAINING CYANOGROUP - Google Patents
METHOD OF OBTAINING NITROGENES CONTAINING CYANOGROUPInfo
- Publication number
- RU93020051A RU93020051A RU93020051/05A RU93020051A RU93020051A RU 93020051 A RU93020051 A RU 93020051A RU 93020051/05 A RU93020051/05 A RU 93020051/05A RU 93020051 A RU93020051 A RU 93020051A RU 93020051 A RU93020051 A RU 93020051A
- Authority
- RU
- Russia
- Prior art keywords
- alkyl
- cyanating agent
- prototype
- halogen
- formula
- Prior art date
Links
- 125000000217 alkyl group Chemical group 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 claims 3
- -1 cyanoethoxyalkyl Chemical group 0.000 claims 2
- 229910052736 halogen Inorganic materials 0.000 claims 2
- 150000002367 halogens Chemical class 0.000 claims 2
- MWFMGBPGAXYFAR-UHFFFAOYSA-N Acetone cyanohydrin Chemical compound CC(C)(O)C#N MWFMGBPGAXYFAR-UHFFFAOYSA-N 0.000 claims 1
- 125000004442 acylamino group Chemical group 0.000 claims 1
- 125000005041 acyloxyalkyl group Chemical group 0.000 claims 1
- 229910001508 alkali metal halide Inorganic materials 0.000 claims 1
- 150000008045 alkali metal halides Chemical class 0.000 claims 1
- 125000003342 alkenyl group Chemical group 0.000 claims 1
- 125000004183 alkoxy alkyl group Chemical group 0.000 claims 1
- 125000003545 alkoxy group Chemical group 0.000 claims 1
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims 1
- 125000005078 alkoxycarbonylalkyl group Chemical group 0.000 claims 1
- 125000003710 aryl alkyl group Chemical group 0.000 claims 1
- 239000000987 azo dye Substances 0.000 claims 1
- 239000002585 base Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 claims 1
- 239000003086 colorant Substances 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 239000000986 disperse dye Substances 0.000 claims 1
- 239000000975 dye Substances 0.000 claims 1
- 238000004043 dyeing Methods 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 230000003993 interaction Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 claims 1
- 125000005429 oxyalkyl group Chemical group 0.000 claims 1
- 125000005359 phenoxyalkyl group Chemical group 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims 1
- 239000012209 synthetic fiber Substances 0.000 claims 1
- 229920002994 synthetic fiber Polymers 0.000 claims 1
Claims (1)
где X = H, Cl, Br, NO2, CN; Y = H, NO2, Cl, Br, алкил, алкоксикарбонил; A и A1 = H, алкил, алкоксил, галоген, ациламиногруппа; R = алкил, оксиалкил, алкоксиалкил, цианэтоксиалкил, феноксиалкил, ацилоксиалкил, цианалкил, алкоксикарбонилалкил, аралкил, алкенил; R1 = H или имеет одно из значений R. Дисперсные красители формулы имеют значение для крашения синтетических волокон, в первую очередь полиэфирных волокон, в цвета от красных до синих. Сущность способа заключается во взаимодействии галогенсодержащих азокрасителей с цианирующим агентом в присутствии медного катализатора и основания и, при необходимости, промоторов - перидинов или галогенидов щелочных металлов, или четвертичных солей аммония. Существенным отличием способа является использование в качестве цианирующего агента - ацетонциангидрина. Положительный эффект - повышение выхода целевого продукта до 93 - 97%, у прототипа 77 - 84%. Эффективность (селективность цианирования) для заявляемого цианирующего агента составляет 0,9 - 0,98, у прототипа 0,61 - 0,88.The invention relates to a method for producing dispersed monoazo dyes containing a cyan group of the formula
where X = H, Cl, Br, NO 2 , CN; Y = H, NO 2 , Cl, Br, alkyl, alkoxycarbonyl; A and A 1 = H, alkyl, alkoxy, halogen, acylamino; R = alkyl, oxyalkyl, alkoxyalkyl, cyanoethoxyalkyl, phenoxyalkyl, acyloxyalkyl, cyanalkyl, alkoxycarbonylalkyl, aralkyl, alkenyl; R 1 = H or has one of the values of R. Disperse dyes of the formula are important for dyeing synthetic fibers, primarily polyester fibers, in colors from red to blue. The essence of the method consists in the interaction of halogen-containing azo dyes with cyanating agent in the presence of a copper catalyst and a base and, if necessary, promoters - peridines or alkali metal halides, or quaternary ammonium salts. The essential difference of the method is the use of acetone cyanohydrin as a cyanating agent. The positive effect is an increase in the yield of the target product to 93 - 97%, in the prototype 77 - 84%. The effectiveness (selectivity of cyanidation) for the proposed cyanating agent is 0.9-0.98, for the prototype 0.61-0.88.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU93020051A RU2068429C1 (en) | 1993-04-09 | 1993-04-09 | Process for preparing cyanogroups containing azo dyes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU93020051A RU2068429C1 (en) | 1993-04-09 | 1993-04-09 | Process for preparing cyanogroups containing azo dyes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU93020051A true RU93020051A (en) | 1996-05-10 |
| RU2068429C1 RU2068429C1 (en) | 1996-10-27 |
Family
ID=20140538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU93020051A RU2068429C1 (en) | 1993-04-09 | 1993-04-09 | Process for preparing cyanogroups containing azo dyes |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2068429C1 (en) |
-
1993
- 1993-04-09 RU RU93020051A patent/RU2068429C1/en active
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