SU136366A1 - The method of obtaining alpha-chloro-substituted aliphatic carboxylic acids - Google Patents
The method of obtaining alpha-chloro-substituted aliphatic carboxylic acidsInfo
- Publication number
- SU136366A1 SU136366A1 SU671537A SU671537A SU136366A1 SU 136366 A1 SU136366 A1 SU 136366A1 SU 671537 A SU671537 A SU 671537A SU 671537 A SU671537 A SU 671537A SU 136366 A1 SU136366 A1 SU 136366A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chloro
- carboxylic acids
- substituted aliphatic
- aliphatic carboxylic
- obtaining alpha
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
а-хлорзамещенные кислоты и их производные представл ют интерес как полупродукты дл р да синтезов. Так, монохлоруксусна кислота в больших количествах используетс в различных отрасл х химической Промышленности, например дл си нтеза красителей, сельскохоз йствбнных дохимикатов и в дрз-тих отрасл х.α-chloro-substituted acids and their derivatives are of interest as intermediates for a number of syntheses. Thus, monochloroacetic acid is used in large quantities in various sectors of the chemical Industry, for example, for the synthesis of dyes, agricultural yogic chemicals, and in other industries.
а-хлорпропионовую кислоту примен ют дл синтеза гербицидов селективного действи и фунгицидов, а-хлорнитрилы могут быть применены в качестве фунгицидов.A-chloropropionic acid is used to synthesize selective herbicides and fungicides; a-chloronitriles can be used as fungicides.
Однако широко примен емый в промышленности способ получени указанных «ислот хлорированием соответствующих алифатических кислот имеет р д недостатков: получаемые продукты реакции не однородны , так как образуютс ди- и полихлориды, а также изомерные соединени , результаты не однозначны и др.However, the widely used industry method of obtaining these "acids by chlorination of the corresponding aliphatic acids has a number of disadvantages: the resulting reaction products are not homogeneous, since di- and polychlorides and isomeric compounds are formed, the results are not straightforward, etc.
Предлагаемый способ получени а-хлорзам.ешенных алифатических карбановых кислот отличаетс тем, что а-цианалкиларилсульфонаты подвергают взаимодействию с хлористыми сол ми шелочных металлов в среде ди- или триэтиленгликол с последуюш,им кислотным гидролизам получаемого а-хлорнитрила.The proposed method for the preparation of α-chloroamam-substituted aliphatic carbanoic acids is characterized in that the a-cyanoalkylaryl sulfonates are reacted with chloride salts of silk metals in di- or triethylene glycol, followed by acid hydrolysis of the resulting α-chloronitrile.
Способ позволит на базе промышленного сырь получать инд(видуальные продукты.The method will allow on the basis of industrial raw materials to get ind (mind products.
Пример 1. Получение хлорацетонитрила (с хлористьга натрием). К 58,5 г прокаленного порошкообразного хлористого натри и 100 г диэтиленгликол лри перемешивании, ПО-120° и остаточном давлении о мм рт. ст. по капл м прибавл ют 100 г гликолонитрилбензолсульфоната-сырца . Непрерывно отгон ющийс нитрил конденсируют в ловушке , охлаждаемой до -60°. Получают хлорацетонитрил в количестве 26, 57 г, т. кип. 122-123°/745 мм 1,4208 D| М,1933. По литературным данным т. кип. CHs C1CN: 123-124°, D; 1,193. Выход на загруженный гликолонитрилбензолсульфонат 69,4%.Example 1. Obtaining chloroacetonitrile (with sodium chloride). To 58.5 g of calcined powdered sodium chloride and 100 g of diethylene glycol with stirring, PO-120 ° and a residual pressure of about mm Hg. Art. 100 g of raw glycolonitrile benzene sulfonate is added dropwise. Continuously distilled nitrile is condensed in a trap cooled to -60 °. Receive chloroacetonitrile in the amount of 26, 57 g, t. Kip. 122-123 ° / 745 mm 1,4208 D | M, 1933. According to literary data t. Kip. CHs C1CN: 123-124 °, D; 1,193. The yield on the loaded glycolonitrile benzene sulfonate 69.4%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU671537A SU136366A1 (en) | 1960-06-25 | 1960-06-25 | The method of obtaining alpha-chloro-substituted aliphatic carboxylic acids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU671537A SU136366A1 (en) | 1960-06-25 | 1960-06-25 | The method of obtaining alpha-chloro-substituted aliphatic carboxylic acids |
Publications (1)
Publication Number | Publication Date |
---|---|
SU136366A1 true SU136366A1 (en) | 1960-11-30 |
Family
ID=48292649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU671537A SU136366A1 (en) | 1960-06-25 | 1960-06-25 | The method of obtaining alpha-chloro-substituted aliphatic carboxylic acids |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU136366A1 (en) |
-
1960
- 1960-06-25 SU SU671537A patent/SU136366A1/en active
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