CH165420A - Process for obtaining a highly concentrated aqueous solution of a salt of 3,5-diiodo-2-pyridone-N-acetic acid. - Google Patents
Process for obtaining a highly concentrated aqueous solution of a salt of 3,5-diiodo-2-pyridone-N-acetic acid.Info
- Publication number
- CH165420A CH165420A CH165420DA CH165420A CH 165420 A CH165420 A CH 165420A CH 165420D A CH165420D A CH 165420DA CH 165420 A CH165420 A CH 165420A
- Authority
- CH
- Switzerland
- Prior art keywords
- acetic acid
- diiodo
- pyridone
- salt
- obtaining
- Prior art date
Links
Landscapes
- Pyridine Compounds (AREA)
Description
Verfahren zur Gewinnung einer hochkonzentrierten wässerigen Lösung eines Salzes der 3.ü-Dijod-2-pyridon-N-essigsäure. Das Hauptpatent betrifft ein Verfahren zur Gewinnung einer hochkonzentrierten wässeri gen Lösung eines Salzes der 3.
5 - Dijod - 4- pyridon - N - essigsäure, welches dadurch ge kennzeichnet ist, dass man die 3.5-Dijod-4- pyridoii-N-essigsäure in wässerigem Medium mit Diäthylamin behandelt.
Das Zusatzpatent Nr. 163441 betrifft die Herstellung einer konzentrierten Lösung eines Salzes der 3.5-Dijod-4-pyridon-N-essigsäure durch Behandlung dieser Säure mit Bis-oxy- äthylamin.
Es wurde nun gefunden, dass man auch zu einer hochkonzentrierten Lösung eines Salzes der 3.5-Dijod-2-pyridon-N-essigsäui-e gelangen kann, wenn mau diese Säure in wässerigem Medium mit Bis - oxyäthylamin behandelt. Die Lösung soll als Röntgenkon trastmittel Verwendung finden. <I>Beispiel:</I> 10,1 gr 3.5-Dijod-2-pyridon-N-essigsäure werden in 2,6 gr Bis oxyäthylamin und 20 cm3 Wasser unter Erwärmung gelöst.
Die Lösung in 100 eins enthält 50,5 gr 3.5-Dijod-2-pyri- don-N-essigsäui#e in Form des Bis-oxyäthyl- aminsalzes.
Process for obtaining a highly concentrated aqueous solution of a salt of 3.ü-Diiodo-2-pyridone-N-acetic acid. The main patent relates to a method for obtaining a highly concentrated aqueous solution of a salt of the 3rd
5 - diiodo - 4 - pyridone - N - acetic acid, which is characterized in that the 3,5-diiodo-4-pyridoii-N-acetic acid is treated with diethylamine in an aqueous medium.
The additional patent no. 163441 relates to the preparation of a concentrated solution of a salt of 3,5-diiodo-4-pyridone-N-acetic acid by treating this acid with bis-oxyethylamine.
It has now been found that a highly concentrated solution of a salt of 3,5-diiodo-2-pyridone-N-acetic acid can also be obtained if this acid is treated with bis-oxyethylamine in an aqueous medium. The solution should be used as an X-ray contrast medium. <I> Example: </I> 10.1 g of 3.5-diiodo-2-pyridone-N-acetic acid are dissolved in 2.6 g of bis-oxyethylamine and 20 cm3 of water while heating.
The solution in 100 one contains 50.5 grams of 3.5-diiodine-2-pyridone-N-acetic acid in the form of the bis-oxyethylamine salt.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE165420X | 1931-10-15 | ||
| CH161687T | 1932-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH165420A true CH165420A (en) | 1933-11-15 |
Family
ID=25717451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH165420D CH165420A (en) | 1931-10-15 | 1932-06-02 | Process for obtaining a highly concentrated aqueous solution of a salt of 3,5-diiodo-2-pyridone-N-acetic acid. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH165420A (en) |
-
1932
- 1932-06-02 CH CH165420D patent/CH165420A/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH165420A (en) | Process for obtaining a highly concentrated aqueous solution of a salt of 3,5-diiodo-2-pyridone-N-acetic acid. | |
| CH163441A (en) | Process for obtaining a highly concentrated aqueous solution of a salt of 3,5-diiodo-4-pyridone-N-acetic acid. | |
| CH163442A (en) | Process for obtaining a highly concentrated aqueous solution of a salt of 3,5-diiodo-2-pyridone-N-acetic acid. | |
| AT157694B (en) | Process for the production of artificial woven fibers. | |
| CH186728A (en) | Process for the production of a preparation suitable for the production of matting baths. | |
| AT148785B (en) | Process for the preparation of stable solutions of substances with anesthetic effect. | |
| DE602711C (en) | Process for the preparation of a calcium salt solution suitable for injection | |
| AT136393B (en) | Method of making a weed killer. | |
| DE816696C (en) | Process for the preparation of the dibasic calcium salt of acetylglutamic acid | |
| AT128587B (en) | Radiological procedure. | |
| AT103221B (en) | Process for the production of iron leather. | |
| DE688047C (en) | Process for the production of stable aqueous, therapeutically usable solutions of the polyoxyalkylisoalloxazines | |
| DE868331C (en) | Process for the production of a bath additive containing humic acid | |
| AT91238B (en) | Process for the preparation of allylarsic acid. | |
| CH186727A (en) | Process for the production of a preparation suitable for the production of matting baths. | |
| CH161482A (en) | Process for the preparation of 2-methyl-B-naphthindole-5-sulfonic acid. | |
| CH179661A (en) | Process for the preparation of a new quaternary salt. | |
| CH163443A (en) | Process for the production of a highly concentrated aqueous solution of a salt of 3,5-dibromo-4-pyridone-N-acetic acid. | |
| CH161481A (en) | Process for the preparation of 2,3-dimethylindole-6-sulfonic acid. | |
| CH187011A (en) | Process for the preparation of a cyclic ketone. | |
| CH185117A (en) | Process for the production of a preparation suitable for the production of matting baths. | |
| CH152485A (en) | Process for the preparation of a vat dye. | |
| CH118895A (en) | Method for the preparation of vanillin. | |
| CH164832A (en) | Process for the production of n-pimelic acid. | |
| CH141790A (en) | Iron tanning process. |