SU891628A1 - Method of producing isobutyric acid - Google Patents
Method of producing isobutyric acid Download PDFInfo
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- SU891628A1 SU891628A1 SU802909675A SU2909675A SU891628A1 SU 891628 A1 SU891628 A1 SU 891628A1 SU 802909675 A SU802909675 A SU 802909675A SU 2909675 A SU2909675 A SU 2909675A SU 891628 A1 SU891628 A1 SU 891628A1
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- USSR - Soviet Union
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- isobutyric acid
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- acid
- producing isobutyric
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
(54) СПОСОБ ПОЛУЧЕНИЯ ИЗОМАСЛЯПОЙ КИСЛОТЫ(54) METHOD FOR MAKING ISOMABLE ACID
1one
Изобретение относитс к электрохимии, конкретнее к способам получени изомасл ной кислЬты, котора используетс в синтезе лекарственных веществ.The invention relates to electrochemistry, and more specifically to methods for producing isobutyric acid, which is used in the synthesis of drugs.
Известен способ-получени изомасл ной кислоты окислением нзомасл ного альдегида бихроматом кали в концентрированной серной кислоте с выходом 17% 1.A known method for the production of isobutyric acid by the oxidation of n-butyric aldehyde with potassium bichromate in concentrated sulfuric acid with a yield of 17% 1.
Известен также способ получени изомасл иой кислоты окислением изомасл ногоальдеги- да кислородом воздуха в присутствии CoBfj или МпВгз с выходом; 36% 2.There is also known a method for producing isobutyric acid by oxidizing isobutyraldehyde with atmospheric oxygen in the presence of CoBfj or MnBrhz to yield; 36% 2.
Основной недостаток методов - низкий выход нелевого продукта и образование токсичных стоков при использовании бихромата кали .The main disadvantage of the methods is the low yield of the non-salvage product and the formation of toxic waste when using potassium dichromate.
Известен способ получени изомасл ной кислоты путем окислени изомасл ного- альдегида кислородом воздуха в присутствии производных ферроцена. Выход целевого продукта составл ет 58 вес.% 3,.A known method of producing isobutyric acid by oxidizing isobutyric aldehyde with atmospheric oxygen in the presence of ferrocene derivatives. The yield of the target product is 58 wt.% 3 ,.
Недостатком известного способа вл етс сравнительно низкий выход целевого продукта, а также применение дорогого и дефицитното ферроцена.The disadvantage of this method is the relatively low yield of the target product, as well as the use of expensive and scarce ferrocene.
Цель изобретени заключаетс в упрощении процесса и в повьпиении выхода целевого продукта.The purpose of the invention is to simplify the process and to increase the yield of the target product.
Поставленна цель достигаетс способом получени изомасл ной кислоты путем электрохимического окислени изомасл ного |альде гида в щелочной среде на окисно-никелевом аноде при 20 - 40С и плотности тока 2 - 10 .This goal is achieved by the method of obtaining isobutyric acid by electrochemical oxidation of isobutyric aldehyde in an alkaline medium on an oxide-nickel anode at 20-40 ° C and a current density of 2-10.
Выход целевого продукта составл ет 65 10 70 вес.%.The yield of the target product is 65 10 70 wt.%.
Количество щелочи в процессе должно быть достаточным дл нейтрализации образующейс кислоты, поэтому- при различном количестве The amount of alkali in the process should be sufficient to neutralize the resulting acid, therefore, with a different amount
1$ исходного альдегида концентраци , щелочи в электролите перед началом окислени должна быть различной. Дл обеспечени устойчивости окисно-никелевого электрода среда 6 течение процесса должна бьггь силь20 но щелочной. По этой причине нижний предел концейтрации щелочи в синтезе должен бьггь не ниже 2,5%. Следовательно, общее количество необходимой дл электролиза ще1 $ of initial aldehyde concentration, alkali in the electrolyte before oxidation should be different. In order to ensure the stability of the oxide-nickel electrode, medium 6 during the process must be strongly alkaline. For this reason, the lower limit of the concentration of alkali in the synthesis should be no less than 2.5%. Consequently, the total amount required for electrolysis
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802909675A SU891628A1 (en) | 1980-04-11 | 1980-04-11 | Method of producing isobutyric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802909675A SU891628A1 (en) | 1980-04-11 | 1980-04-11 | Method of producing isobutyric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU891628A1 true SU891628A1 (en) | 1981-12-23 |
Family
ID=20889547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802909675A SU891628A1 (en) | 1980-04-11 | 1980-04-11 | Method of producing isobutyric acid |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU891628A1 (en) |
-
1980
- 1980-04-11 SU SU802909675A patent/SU891628A1/en active
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