DE704549C - Process for the production of polyjodoxyphenylphenyl acetic acids - Google Patents

Process for the production of polyjodoxyphenylphenyl acetic acids

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Publication number
DE704549C
DE704549C DESCH118443D DESC118443D DE704549C DE 704549 C DE704549 C DE 704549C DE SCH118443 D DESCH118443 D DE SCH118443D DE SC118443 D DESC118443 D DE SC118443D DE 704549 C DE704549 C DE 704549C
Authority
DE
Germany
Prior art keywords
production
polyjodoxyphenylphenyl
acetic acids
acid
water
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DESCH118443D
Other languages
German (de)
Inventor
Dr Paul Diedrich
Dr Max Dohrn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Pharma AG
Original Assignee
Schering AG
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 Schering AG filed Critical Schering AG
Priority to DESCH118443D priority Critical patent/DE704549C/en
Application granted granted Critical
Publication of DE704549C publication Critical patent/DE704549C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/40Unsaturated compounds
    • C07C59/42Unsaturated compounds containing hydroxy or O-metal groups
    • C07C59/56Unsaturated compounds containing hydroxy or O-metal groups containing halogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Herstellung von Polyjodoxyphenylphenylessigsäuren Außer dem bekamitenTetrajodphenolphthalein, das zur röntgenologischen Sichtbarmachung der Gallenblase benutzt wird, sind auch jodierte Abkömmlinge der 2-Phenylcinchonirnsäure für diese Verwendung herangezogen worden (Patentschrift 5o5 16o). Alle diese Verbindungen geben zwar einen guten Schatten, sie haben sich jedoch in der zur Applikation nötigen Menge physiologisch nicht als so indifferent erwiesen, wie es für diagnostische Mittel gefordert werden muß. Es wurden. nun in den polyjodierten Abkömmlingen der a-Oxyphenyl-a-phenylessigsäuren lipoidlösliche Verbindungen gefunden, die im Gegensatz zu den bisher bekannten Gallenkontrastmitteln, auch gegenüber den analogen Bromverbindungen (Berichte d. d. chem. Ges. Bd. 41 [19o81, S. 1666), mit guter Kontrastwirkung eine vorzügliche Verträglichkeit verbinden. Ihre Herstellung erfolgt durch Jodierung von o- oder p-a-Oxyphenyl-a-phenylessigsäuren nach an sich üblichen Methoden.Process for the preparation of polyjodoxyphenylphenyl acetic acids Except obtained tetraiodophenolphthalein, which is used for radiological visualization used in the gall bladder are also iodinated derivatives of 2-phenylcinchonimic acid been used for this use (patent specification 5o5 16o). All of these connections give a good shadow, but they have the necessary for application Set physiologically not as indifferent as it is for diagnostic purposes Funds must be demanded. There were. now in the polyiodinated descendants of the a-Oxyphenyl-a-phenylacetic acid lipoid-soluble compounds found in contrast to the previously known bile contrast media, also to the analogous bromine compounds (Reports d. D. Chem. Ges. Vol. 41 [19o81, p. 1666), one with a good contrast effect combine excellent compatibility. They are produced by iodination of o- or p-a-oxyphenyl-a-phenylacetic acids according to conventional methods.

Als besonders geeignet haben sich Verbindungen der folgenden Formel erwiesen: Beispiel 1 x- (3.5-D i j od-4-oxvphen_N@ 1) -x-phenvles s i gsäure. 22,8 g 2-(4-Oxyphenyl)-x-phenylessigsäure «-erden in .l.oo ccm n-Nat.ronlauge und 25o ccm Wasser gelöst, und die Lösung wird mit einer solchen von 5 1 g Jod, 51 g Jodkalium und 5oo ccni Wasserbei gewöhnlicher Temperatur trohfen@@-eise versetzt. Nach viil- liger Zugabe wird noch einige Zeit gerührt und darauf die jodierte X"erbindung durch Zu- satz von schwefliger Säure ausgefällt. Der Niederschlag wird abgesaugt, mit Wässer ausgewaschen und aus verdünntem Alkohol titngelöst. Die erhaltene x- (3, 5-Di jocl-d.-oxN@- phenvl)-x-phen @-lessigs<iure schmilzt bei 197'. Sie ist leicht hslich in Alkohol, Aceton und Äther, schwer löslich in Benzol und Toltiol, unlöslich in Chloroform und Ligroin. Beispiel x-(3.5-Di jod-2-otcpliencl )-x-phenvlessig- sä ure. 2 i , o g x- (2-Ozvplienyl) -x-plienyl ess ig siiu re- lacton vorn Sclnnelzptitikt ti3 bis ii-1=` wer- den in .4oo ccin und 25o ceni Wasser gelöst und finit derselben Menge Jod- wie sie im Beispiel i aitge- waudt wurde, behandelt. Die Aufarbeitung ergibt ein Produkt, das nach dem Urn1ösen aus verdünntem Alkohol bei 16o° schmilzt und reine x-(3, 5-Di jOd-2-otyplienyl)-x-plie- nylessigsäure darstellt. Ihre Löslichkeitsver- hältnisse sind dieselben wie die der -j-Verbin- dung. Beispiel 3 x-(3.3-I)i jod-.@-o@tphen_c1)-x-pllcnvIessig- säure. . @' -z. ,8 g x - (.l - Osy#phcnyl ) - x - phenylessig_ säure %%-erden in Zoo ccin n-Natronlauge und 300 ccni Wasser gelöst, und diese Lösung wird zu einer solchen von 339 Chlorjod in ;o ccm 3oofoiger Salzsäure und 450 ccm Was- ser unter Rühren langsam zugesetzt. Nach inehrstündigemRiihren wird derNiederschlag abgetrennt, in verdünnter Natronlauge gelöst, filtriert und mit Säure (las jodierte Produkt wieder ausgefällt. Nach dein Umkristallisie- ren aus verdünntem Alkohol schmilzt die so erhaltene x-(3.5-Dijod-.f oxvplien_vl)-x-phen_vl- essigsäure ebenfalls bei i97°. Compounds of the following formula have proven to be particularly suitable: Example 1 x- (3.5-Dij od-4-oxvphen_N @ 1) -x-phenylsic acid. 22.8 g of 2- (4-oxyphenyl) -x-phenylacetic acid «earths are dissolved in .loo ccm of n-sodium hydroxide solution and 25o ccm of water, and the solution is mixed with one of 5, 1 g of iodine, 51 g Potassium iodine and 500 ccni water for the more common Temperature trohfen @@ - ice shifted. After viil- The addition is continued for some time and then the iodized X "connection through set of sulphurous acid precipitated. Of the Precipitation is sucked off with water washed out and made from diluted alcohol titled. The obtained x- (3, 5-Di jocl-d.-oxN@- phenvl) -x-phen @ -lessigs <iure melts at 197 '. It is slightly ugly in alcohol, acetone and Ether, sparingly soluble in benzene and toltiol, insoluble in chloroform and ligroin. example x- (3.5-Di iod-2-otcpliencl) -x-phenvlessig- acid. 2 i, og x- (2-Ozvplienyl) -x-plienyl ess ig siiu re lactone at the beginning of the short term ti3 to ii-1 = `be the one in .4oo ccin and 25o ceni Dissolved in water and finely the same amount of iodine as shown in the example i waudt was treated. The work-up results in a product that, after the urn from diluted alcohol melts at 16o ° and pure x- (3, 5-Di jOd-2-otyplienyl) -x-plie- represents nylon acetic acid. Your solubility conditions are the same as those of the -j-connection- manure. Example 3 x- (3.3-I) i iodine -. @ - o @ tphen_c1) -x-pllcnvIessig- acid. . @ '-z. , 8 gx - (.l - Osy # phcnyl) - x - phenylessig_ acid %% - earth in Zoo ccin n-caustic soda and 300 ccni of water are dissolved and this solution becomes one of 339 chloroiodine in ; o ccm 30% hydrochloric acid and 450 ccm water water slowly added with stirring. To after several hours of stirring, the precipitation separated, dissolved in dilute sodium hydroxide solution, filtered and acidified (read iodized product failed again. After your recrystallization Ren from diluted alcohol melts the so obtained x- (3.5-Dijod-.f oxvplien_vl) -x-phen_vl- acetic acid also at 97 °.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung von Poly- jodoxyplietivlplienvlessigsäuren, dadurch gekennzeichnet, daß x-OYyphenyl-x-phe- nylessigsäuren jodiert werden. 2. Ausführungsform des Verfahrens nach Anspruch i, dadurch gekennzeichnet, daß x-(d.-OZvplienyl)-x-plienylessigsäure als Ausgangsstoff Verwendung findet.
PATENT CLAIMS: i. Process for the production of poly iodoxyplietivlplienvlacetic acids, thereby characterized that x-OYyphenyl-x-phe- nylon acetic acids are iodized. 2nd embodiment of the method according to claim i, characterized in that that x- (d.-OZvplienyl) -x-plienyl acetic acid is used as a starting material.
DESCH118443D 1939-05-21 1939-05-21 Process for the production of polyjodoxyphenylphenyl acetic acids Expired DE704549C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH118443D DE704549C (en) 1939-05-21 1939-05-21 Process for the production of polyjodoxyphenylphenyl acetic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH118443D DE704549C (en) 1939-05-21 1939-05-21 Process for the production of polyjodoxyphenylphenyl acetic acids

Publications (1)

Publication Number Publication Date
DE704549C true DE704549C (en) 1941-04-02

Family

ID=7450995

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH118443D Expired DE704549C (en) 1939-05-21 1939-05-21 Process for the production of polyjodoxyphenylphenyl acetic acids

Country Status (1)

Country Link
DE (1) DE704549C (en)

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