SU101715A1 - Method for preparing usnic acid sodium salt - Google Patents
Method for preparing usnic acid sodium saltInfo
- Publication number
- SU101715A1 SU101715A1 SU450872A SU450872A SU101715A1 SU 101715 A1 SU101715 A1 SU 101715A1 SU 450872 A SU450872 A SU 450872A SU 450872 A SU450872 A SU 450872A SU 101715 A1 SU101715 A1 SU 101715A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sodium salt
- usnic acid
- preparing
- acid sodium
- usnic
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Предлагаетс способ получени натриевой соли усниновой кислоты, позвол ющий использовать ее в качестве лечебного средства.A method is proposed for preparing usnic acid sodium salt, which can be used as a therapeutic agent.
Особеиность способа заключаетс в том, что усииновую кислоту, полученную известным способом из лишайников , обрабатывают бикарбонатом или содой в спиртовой среде.The peculiarity of the process is that the hydroxy-acid obtained in a known way from lichens is treated with bicarbonate or soda in an alcoholic medium.
Дл осуществлени способа усниновую кислоту на холоду в колбе взбалтывают с этиловым спиртом. К полученной смеси добавл ют насыиденный водный раствор бикарбоната натри или водный раствор кристаллического карбоната натри . На 1 г усниновой кислоты берут 6 мл этилового спирта и 12 мл 12%-иого раствора бикарбоната или 12 мл 11%-ного раствора соды. После этого содержимое колбы энергично встр хивают. В течение первыхFor carrying out the process, the usnic acid in the cold in the flask is shaken with ethyl alcohol. A saturated sodium bicarbonate aqueous solution or an aqueous solution of crystalline sodium carbonate is added to the resulting mixture. For 1 g of usnic acid, 6 ml of ethyl alcohol and 12 ml of 12% bicarbonate solution or 12 ml of 11% soda solution are taken. After this, the contents of the flask are vigorously shaken. During the first
10-15 мин. реакци идет на холоду, а потом заканчиваетс при нагревании на вод ной бане до полного просветлени раствора, который затем гор чим фильтрируют через бумажный фильтр.10-15 min. the reaction proceeds in the cold and then ends when heated in a water bath until the solution is completely clear, which is then filtered through a filter paper using a hot filter.
Из охлажденного фильтрата выпадают кристаллы натриевой соли усниновой кислоты, которые промывают небольшим количеством 3%-ного этилового спирта до слабо ш,елочной реакции (на фенолфталеин) и высушивают.Crystals of usnic acid sodium salt fall out of the cooled filtrate, which are washed with a small amount of 3% ethyl alcohol to a low degree of alkaline reaction (phenolphthalein) and dried.
П .р е л м е т изобретени The invention of
Способ получени натриевой соли усниновой кислоты, о т л и ч а юШ и и с тем, что усниновую кислоту , полученную известным способом из лишайников, обрабатывают бикарбонатом или содой в спиртовой среде.The method of obtaining the sodium salt of usnic acid, that is, with the fact that usnic acid, obtained in a known way from lichens, is treated with bicarbonate or soda in an alcoholic medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU450872A SU101715A1 (en) | 1955-03-01 | 1955-03-01 | Method for preparing usnic acid sodium salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU450872A SU101715A1 (en) | 1955-03-01 | 1955-03-01 | Method for preparing usnic acid sodium salt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU101715A1 true SU101715A1 (en) | 1955-11-30 |
Family
ID=48375528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU450872A SU101715A1 (en) | 1955-03-01 | 1955-03-01 | Method for preparing usnic acid sodium salt |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU101715A1 (en) |
-
1955
- 1955-03-01 SU SU450872A patent/SU101715A1/en active
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