DE426346C - Process for the preparation of 4-amino-2-cupromercaptobenzene-1-carboxylic acid - Google Patents
Process for the preparation of 4-amino-2-cupromercaptobenzene-1-carboxylic acidInfo
- Publication number
- DE426346C DE426346C DEC35809D DEC0035809D DE426346C DE 426346 C DE426346 C DE 426346C DE C35809 D DEC35809 D DE C35809D DE C0035809 D DEC0035809 D DE C0035809D DE 426346 C DE426346 C DE 426346C
- Authority
- DE
- Germany
- Prior art keywords
- amino
- carboxylic acid
- preparation
- cupromercaptobenzene
- mercaptobenzene
- 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
Links
Description
Verfahren zur Darstellung von 4-Amino-2-cupromercaptobenzol-l-carbonsäure. Es ist bisher nicht gelungen, organische Cuproverbindungen herzustellen, bei denen einwertiges Kupfer an Schwefel gebunden ist. Dies ist nun bei der 4Amino-2-mercaptobenzol-i-carbonsäure geglückt, von der bereits komplexe Gold-, Silber- und Ouecksilberverbindungen bekannt sind.Process for the preparation of 4-amino-2-cupromercaptobenzene-1-carboxylic acid. So far it has not been possible to produce organic cupro compounds in which monovalent copper is bound to sulfur. This is now the case with 4-amino-2-mercaptobenzene-i-carboxylic acid successful, known from the already complex gold, silver and mercury compounds are.
Man gelangt zu der neuen Verbindung, wenn inan Cuprosalze auf die 4-Amino-2-mercaptobenzol-i-carbonsäure in alkalischer, saurer oder neutraler Lösung einwirken läßt.The new compound is obtained when inan cuprosalts on the 4-Amino-2-mercaptobenzene-i-carboxylic acid in alkaline, acidic or neutral solution can act.
Die freie Cupromercaptocarbons.itire stellt ein kräftig gelb gefärbtes Pulver dar, das in Alkali leicht zu den entsprechenden Alkalisalzen löslich ist. Es nimmt beim Stehen an der Luft, namentlich im feuchten Zustand, bald eine grauviolette Farbe an.The free Cupromercaptocarbons.itire represents a strong yellow color Powder that is easily soluble in alkali to the corresponding alkali salts. When standing in the air, especially when moist, it soon becomes gray-violet Color on.
Die Alkalisalze sind graugelb gefärbte Verbindungen, die in Wasser löslich sind und durch Alkohol aus ihren -wässerigen Lösungen gefällt -werden können.The alkali salts are gray-yellow colored compounds that exist in water are soluble and can be precipitated from their aqueous solutions by alcohol.
Beispiele. i. Man löst 20 g d.- Amino-2-mercaptobenzol-i-carbons-.lure in 300 ccm 5prozentiger Salzsäure und gibt eine Lösung von 7 g Cuprochlorid in ioo ccm Kochsalzlösung zu. 1 ach kurzer Zeit scheidet sich die Cuproverbindung CBH3 - (NH2)'. (COOH) # SCu in gelben Flocken ab. Das N atriumsalz wird durch Lösen in Natronlauge und Fällen mit Alkohol geronnen.Examples. i. 20 g of d.-amino-2-mercaptobenzene-i- carboxylic acid are dissolved in 300 cc of 5 percent hydrochloric acid and a solution of 7 g of cuprous chloride in 100 cc of saline solution is added. After a short time, the cupro compound CBH3 - (NH2) 'separates. (COOH) # SCu in yellow flakes. The sodium salt is coagulated by dissolving it in sodium hydroxide solution and precipitating it with alcohol.
2. Man löst io Teile 4..Amino-2-mercaptobenzol-i-carbonsäure in der berechneten Menge 5prozentigem wässerigen Ammoniak und fügt 3,5 Teile Cuprochlorid in ammoniakalischer Lösung hinzu. Sodann -wird die Cupromercaptocarbonsäure durch Zugabe eines Überschusses ioprozentiger Essigsäure gefällt.2. One dissolves 10 parts of 4..amino-2-mercaptobenzene-i-carboxylic acid in the calculated amount of 5 percent aqueous ammonia and adds 3.5 parts of cuprous chloride in ammoniacal solution. Then - the cupromercaptocarboxylic acid is through Adding an excess of 10 percent acetic acid precipitated.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC35809D DE426346C (en) | 1924-05-28 | 1924-05-28 | Process for the preparation of 4-amino-2-cupromercaptobenzene-1-carboxylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC35809D DE426346C (en) | 1924-05-28 | 1924-05-28 | Process for the preparation of 4-amino-2-cupromercaptobenzene-1-carboxylic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE426346C true DE426346C (en) | 1926-03-06 |
Family
ID=7021994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEC35809D Expired DE426346C (en) | 1924-05-28 | 1924-05-28 | Process for the preparation of 4-amino-2-cupromercaptobenzene-1-carboxylic acid |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE426346C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2490717A (en) * | 1946-02-12 | 1949-12-06 | Hoffmann La Roche | Metal mercaptides of 2-amino-benzenethiol |
-
1924
- 1924-05-28 DE DEC35809D patent/DE426346C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2490717A (en) * | 1946-02-12 | 1949-12-06 | Hoffmann La Roche | Metal mercaptides of 2-amino-benzenethiol |
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