SU108300A1 - The method of obtaining osarsol - Google Patents

The method of obtaining osarsol

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Publication number
SU108300A1
SU108300A1 SU566969A SU566969A SU108300A1 SU 108300 A1 SU108300 A1 SU 108300A1 SU 566969 A SU566969 A SU 566969A SU 566969 A SU566969 A SU 566969A SU 108300 A1 SU108300 A1 SU 108300A1
Authority
SU
USSR - Soviet Union
Prior art keywords
osarsol
acid
obtaining
solution
reaction
Prior art date
Application number
SU566969A
Other languages
Russian (ru)
Inventor
М.Я. Крафт
Е.Н. Сытина
Original Assignee
М.Я. Крафт
Е.Н. Сытина
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 М.Я. Крафт, Е.Н. Сытина filed Critical М.Я. Крафт
Priority to SU566969A priority Critical patent/SU108300A1/en
Application granted granted Critical
Publication of SU108300A1 publication Critical patent/SU108300A1/en

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Description

Известны способы получени  осарсола ацстилироваиием 3-амино4-оксифе1П1;1арси овойкислоты ,There are known methods for the preparation of osarsol by acstilating with 3-amino4-oxyphe1P1; 1arsic acid;

например, в уксуснокислой среде или в растворе соды. Однако в этих случа х по.пучаетс  продукт, требующий ДОИОЛ1П1ТОЛЫЮЙ очистки.for example, in acetic acid medium or in soda solution. However, in these cases, a product requiring DOIOL1P1TOLY purification is obtained.

Предлагаемый способ позвол ет ПОВЫСИ1 j выход ocapco.:ia. Это достигаетс  тем, что ацетилированпе 3-амипо-4-оксифе1Н1ларсиповой кислоты проводит в растворе cepin-iCTOкислого натри .The proposed method allows the EXIT 1 j output ocapco .:ia. This is achieved by carrying out the acetylated 3-amipo-4-hydroxy-1H1 larsipic acid in a solution of cepin-iCTO sodium.

Способ осугцествл ют так.The way has been made so serious.

Раствор ют 32 г З-амипо-4-оксифениларсииовой кислоты, полученной восстанов.тенпсм З-пнтро-4-оксифенпларсиновой кислоты ципкоБой пылью в сернокислой среде, в растворе 33 г безводного сульфита натри  в- 300 -iLW воды jipn нагревании до 60°. Добавл ют 3,5 г активироваипого угл  и 0,1 г гидросульфита натри . Раствор перемешивают в течение 1 часа и фильтруют . Фильтрат охлаждают до 8--15 и при размепшванип приливают 16,5 г уксусного ангидрида. Через32 g of 3-amipo-4-hydroxyphenylarcic acid, obtained by reducing tpm 3 -pntro-4-hydroxyphene-plarsic acid, are dissolved in a sulfuric acid solution in 33 g of anhydrous sodium sulfite in-300 -iLW water jipn to 60 °. 3.5 g of activated carbon and 0.1 g of sodium hydrosulfite are added. The solution is stirred for 1 hour and filtered. The filtrate is cooled to 8–15, and 16.5 g of acetic anhydride is poured on with the dispensing process. Through

несколько минут иачинаетс  выделение осарсола.a few minutes and the release of osarsol begins.

По истечении 30 мин. к реак- ционной смеси добавл ют сол иую кислоту до киСсЧОЙ реакции на конго (около 40 мл), отфильтровывают выделившийс  осарсол и хорошо промывают его водой до нейтральной реакции (конго) и исчезновени  реакции на ион хлора.After 30 minutes To the reaction mixture, hydrochloric acid is added to the reaction with a congo (about 40 ml), the precipitated osarsol is filtered off and washed well with water until neutral (congo) and the reaction to the chlorine ion disappears.

После высушивани  получают 34,5 г осарсола-91%, счита  на вз тую адпИюкислоту или 82% - счита  на З-иитро-4-оксифениларсииовую кислоту. ПoлyчelU ый таким образом осарсол отвечает всем требовани м фармакопеи.After drying, 34.5 g of osarsol, 91%, is obtained, calculated on the taken adsorbic acid, or 82% - on the basis of W-nitro-4-hydroxyphenylarcic acid. In this way, osarsol meets all the requirements of the pharmacopoeia.

Предмет изобретени Subject invention

Сиособ получени  осарсола путел1 ацетилировани  З-амино-4-оксифеииларспновой кислоты, о т л и ч а ю щ и и с   тем, что, с целью повьииеин  выхода продукта, ацетилирование З-амиио-4-оксифениларсиновой кислоты провод т в растворе сериистокпслого натри .The method for the preparation of osarsol putel1 acetylation of 3-amino-4-hydroxypheylsilic acid, is that with the aim of increasing the yield of the product, the acetylation of 3-amio-4-hydroxyphenylarsinic acid is carried out in solution .

SU566969A 1957-02-14 1957-02-14 The method of obtaining osarsol SU108300A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU566969A SU108300A1 (en) 1957-02-14 1957-02-14 The method of obtaining osarsol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU566969A SU108300A1 (en) 1957-02-14 1957-02-14 The method of obtaining osarsol

Publications (1)

Publication Number Publication Date
SU108300A1 true SU108300A1 (en) 1957-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU566969A SU108300A1 (en) 1957-02-14 1957-02-14 The method of obtaining osarsol

Country Status (1)

Country Link
SU (1) SU108300A1 (en)

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