SU136366A1 - The method of obtaining alpha-chloro-substituted aliphatic carboxylic acids - Google Patents

The method of obtaining alpha-chloro-substituted aliphatic carboxylic acids

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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
Application number
SU671537A
Other languages
Russian (ru)
Inventor
П.О. Гитель
Т.Г. Спиридонова
А.Я. Якубович
Original Assignee
П.О. Гитель
Т.Г. Спиридонова
А.Я. Якубович
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 П.О. Гитель, Т.Г. Спиридонова, А.Я. Якубович filed Critical П.О. Гитель
Priority to SU671537A priority Critical patent/SU136366A1/en
Application granted granted Critical
Publication of SU136366A1 publication Critical patent/SU136366A1/en

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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%.

SU671537A 1960-06-25 1960-06-25 The method of obtaining alpha-chloro-substituted aliphatic carboxylic acids SU136366A1 (en)

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

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Country Status (1)

Country Link
SU (1) SU136366A1 (en)

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