DE429150C - Process for the preparation of a derivative of 4-amino-2-auromercaptobenzene-1-carboxylic acid which is stable in aqueous solution - Google Patents

Process for the preparation of a derivative of 4-amino-2-auromercaptobenzene-1-carboxylic acid which is stable in aqueous solution

Info

Publication number
DE429150C
DE429150C DEF51978D DEF0051978D DE429150C DE 429150 C DE429150 C DE 429150C DE F51978 D DEF51978 D DE F51978D DE F0051978 D DEF0051978 D DE F0051978D DE 429150 C DE429150 C DE 429150C
Authority
DE
Germany
Prior art keywords
amino
carboxylic acid
aqueous solution
auromercaptobenzene
stable
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
DEF51978D
Other languages
German (de)
Inventor
Dr Karl Streitwolf
Dr Paul Fritzsche
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.)
JG Farbenindustrie AG
Original Assignee
JG Farbenindustrie 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 JG Farbenindustrie AG filed Critical JG Farbenindustrie AG
Priority to DEF51978D priority Critical patent/DE429150C/en
Application granted granted Critical
Publication of DE429150C publication Critical patent/DE429150C/en
Expired legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Darstellung eines in wässeriger Lösung beständigen Derivates - der 4-Amino-2-auromercaptobenzol-l-carbonsäure. In den Patentschriften 3,e.032 und 349012 der Klasse i->q sind komplexe Goldverbindungen von Thiophenolen und deren Derivaten beschrieben, die wohl im festen Zustande haltbar sind, deren wässerige Lösungen aber, zumal beim Erwärmen, sich schnell unter Abscheidung von Gold zersetzen. Es bestanden deshalb Schwierigkeiten, von diesen therapeutisch wertvollen Präparaten haltbare Lösungen herzustellen.Process for the preparation of a derivative which is stable in aqueous solution - the 4-amino-2-auromercaptobenzene-1-carboxylic acid. In patent specifications 3, e.032 and 349012 of class i-> q are complex gold compounds of thiophenols and their Described derivatives, which are probably stable in the solid state, their aqueous However, solutions, especially when heated, decompose quickly with the deposition of gold. There were therefore difficulties with these therapeutically valuable preparations to produce durable solutions.

Es wurde nun gefunden, daß man durch Einwirkung von Formaldehydalkalibisulfit auf das N atriumsalz der 4- Amino-2-auromercaptobenzol-i-carbonsäure zu einem neuen Derivat gelangt, dessen wässerige Lösung nahezu unbegrenzt haltbar ist und auch tropischem Klima in üblicher tropensicherer Verpackung widersteht. Hierin liegt ein wesentlicher technischer Fortschritt, der um so weniger vorauszusehen war, als im allgemeinen Formaldehydalkalibisulfit reduzierende Eigenschaften hat und in. dem vorliegenden Falle eine Abspaltung von Gold, zumal in der Wärme, zu erwarten war.It has now been found that the action of formaldehyde alkali metal bisulfite on the sodium salt of 4-amino-2-auromercaptobenzene-i-carboxylic acid to a new one Derivative arrives, the aqueous solution of which is almost indefinitely stable and also withstands tropical climates in standard tropicalized packaging. Herein lies an essential technical advance, which was all the less foreseeable than generally has formaldehyde alkali bisulfite reducing properties and in. In the present case a splitting off of gold, especially in the warmth, is to be expected was.

Beispiel. 3,8 g 4-amino-2-auromercaptobenzol-i-carbonsaures Natrium (i Mol.) und 1,3 kg Formaldehydnatriumbisulfit- (i Mol.) werden in io ccm Wasser gelöst, die klare Lösung in ioo ccm Methylalkohol gegossen, der Niederschlag abgesaugt, mit Methylalkohol und Äther gewaschen und im Hochvakuum getrocknet.Example. 3.8 g of sodium 4-amino-2-auromercaptobenzene-i-carboxylic acid (1 mol.) and 1.3 kg of sodium bisulfite formaldehyde (1 mol.) are dissolved in 10 cc of water dissolved, the clear solution poured into 100 ccm of methyl alcohol, the precipitate sucked off, washed with methyl alcohol and ether and dried in a high vacuum.

Das erhaltene gelbe Produkt löst sich spielend in Wasser mit fast neutraler Reaktion, und seine wässerige Lösung ist - unter Stickstoffatmosphäre - auch in der Wärme haltbar. Es genügt natürlich, wenn man zu einer wässerigen Lösung von 4.-amino-2-atiromercaptobenzol-i-carbonsaurem Natrium -ohne dieses Produkt vorher abgeschieden zu haben - die berechnete Menge Formaldehydalkalibisulfit zusetzt und erst dann das Endprodukt mittels Methylalkohol fällt oder die Lösung unmittelbar zu Injektionszwecken verwendet.The yellow product obtained dissolves easily in water with almost neutral reaction, and its aqueous solution is - under a nitrogen atmosphere - durable even in the warmth. It is of course sufficient to go to an aqueous solution of 4.-amino-2-atiromercaptobenzene-i-carboxylic acid sodium - without this product beforehand to have deposited - the calculated amount of formaldehyde alkali bisulfite added and only then does the end product fall by means of methyl alcohol or the solution immediately used for injections.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines in wässeriger Lösung beständigen Derivates der 4-Amino-2-auromercaptobenzol-i-carbonsäure, gekennzeichnet durch Einwirkung von Formaldehydalkalibisulfit auf das Natriumsalz der Säure. PATENT CLAIM: Process for the preparation of a derivative of 4-amino-2-auromercaptobenzene-i-carboxylic acid which is stable in aqueous solution, characterized by the action of formaldehyde alkali metal bisulfite on the sodium salt of the acid.
DEF51978D 1922-06-10 1922-06-10 Process for the preparation of a derivative of 4-amino-2-auromercaptobenzene-1-carboxylic acid which is stable in aqueous solution Expired DE429150C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF51978D DE429150C (en) 1922-06-10 1922-06-10 Process for the preparation of a derivative of 4-amino-2-auromercaptobenzene-1-carboxylic acid which is stable in aqueous solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF51978D DE429150C (en) 1922-06-10 1922-06-10 Process for the preparation of a derivative of 4-amino-2-auromercaptobenzene-1-carboxylic acid which is stable in aqueous solution

Publications (1)

Publication Number Publication Date
DE429150C true DE429150C (en) 1926-05-20

Family

ID=7105072

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF51978D Expired DE429150C (en) 1922-06-10 1922-06-10 Process for the preparation of a derivative of 4-amino-2-auromercaptobenzene-1-carboxylic acid which is stable in aqueous solution

Country Status (1)

Country Link
DE (1) DE429150C (en)

Similar Documents

Publication Publication Date Title
DE429150C (en) Process for the preparation of a derivative of 4-amino-2-auromercaptobenzene-1-carboxylic acid which is stable in aqueous solution
DE876913C (en) Process for the production of synthetic organic products which can be used as anion exchangers
DE377588C (en) Process for the preparation of a salt-like compound of codeine
DE924148C (en) Process for the preparation of N-methyl-p-aminophenol
DE712666C (en) Process for the production of water-soluble or swellable wood finishing products
AT102313B (en) Process for the representation of complex gold compounds.
AT117056B (en) Process for the preparation of cellulose ethers.
DE515991C (en) Process for the preparation of 2,4-dioxypyridine-3-carboxylic acid nitrile and its Abkoemmlingen
DE454695C (en) Process for the preparation of 2-amino-5-iodopyridine
DE644647C (en) Process for the preparation of salts of the ªÏ-methylfonic acids of pyrazolone amines with ring nitrogen bases
DE330813C (en) Process for the preparation of alcohols and amino alcohols of the quinoline series
DE249726C (en)
DE594275C (en) Process for the production of glycine from its esters and their salts by saponification
DE561628C (en) Process for the preparation of a mercury compound of podophyllin
DE434830C (en) Process for the preparation of paraformaldehyde-free solutions of polymeric formaldehyde in monohydric or polyhydric alcohols
DE481996C (en) Process for the production of alkali oxanthates
DE965407C (en) Process for the production of monomeric organic sulfur compounds
DE58363C (en) Process for the preparation of sulphonic acids of the Basler Blau. (2
DE414854C (en) Process for the production of organic bismuth compounds
DE481926C (en) Process for the production of solid bodies suitable as protective colloids from cellular pitch liquor
AT135356B (en) Process for the production of a mercurochloride double compound of podophyllin.
AT157699B (en) Method for the preparation of water-soluble organic mercury compounds.
AT48333B (en) Process for the preparation of derivatives of phenyl arsenic oxide and arsenobenzene.
DE468710C (en) Process for stabilizing solid alcoholic iodine solutions
DE701527C (en) Process for the preparation of solutions of poorly soluble aryl arsine oxides in water