DE488611C - Process for the preparation of the sulfuric acid ester of 3íñ3-Dioxy-4íñ4-diaminodiphenyl and the latter itself - Google Patents

Process for the preparation of the sulfuric acid ester of 3íñ3-Dioxy-4íñ4-diaminodiphenyl and the latter itself

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Publication number
DE488611C
DE488611C DEI30336D DEI0030336D DE488611C DE 488611 C DE488611 C DE 488611C DE I30336 D DEI30336 D DE I30336D DE I0030336 D DEI0030336 D DE I0030336D DE 488611 C DE488611 C DE 488611C
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DE
Germany
Prior art keywords
sulfuric acid
acid ester
dioxy
preparation
diaminodiphenyl
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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
DEI30336D
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German (de)
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IG Farbenindustrie AG
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IG Farbenindustrie AG
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Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI30336D priority Critical patent/DE488611C/en
Application granted granted Critical
Publication of DE488611C publication Critical patent/DE488611C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C215/00Compounds containing amino and hydroxy groups bound to the same carbon skeleton
    • C07C215/74Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton
    • C07C215/76Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton of the same non-condensed six-membered aromatic ring

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

Description

Verfahren zur Darstellung des Schwefelsäureesters des 3.31-Dioxy-4.41-diaminodiphenyis und des letzteren selbst Das 3-31-Dioxy-4-41-diamiiiodiplienvl ;sowie seine Schwefelsäureester sind bisher noch nicht bekannt geworden.Process for the preparation of the sulfuric acid ester of 3.31-Dioxy-4.41-diaminodiphenyis and of the latter itself the 3-31-Dioxy-4-41-diamiiiodiplienvl; as well as its sulfuric acid esters have not yet become known.

Es wurde-nun ein Weg zu ihrer Darstellung efunden. Er besteht darin, daß man den Schwefelsäureester des o-'-\-itrophenols durch Reduktion in alkalischer Lösung in seine Hydrazoverbindung überführt, diese der Benzidini.imlagerung unterwirft und den so erhaltenen. Schwefelsäureester gegebenenfalls durch geeignete Mittel verseift.A way of representing them has now been found. It consists in that the sulfuric acid ester of o -'- \ - itrophenol by reduction in alkaline Solution converted into its hydrazo compound, which is subjected to Benzidini.imlagerung and the ones so obtained. Sulfuric acid esters, if appropriate by suitable means saponified.

Beispiel ioo Gewichtsteile o-I"litrophenol werden in ein Gemenge von 40o Ge-,vichtsteilen Chlorbenzol, 4oo Gewicbtsteilen Pyridin und 92 Gewichtsteilen Chlorsulfonsäure eingetragen und das Ganze etwa vier Stunden unter gutem Rühren auf 8o' erwärmt. Nach beendeter Umsetzung haben sich zwei Schichten ge-3 bildet, die man voneinander trennt. Die untere läßt man alsdann in eine kalte Lösung von 3oo Gewichtsteilen wasserfreien -Natriumcarbonat in. 15oo Gewichtsteilen Wasser einlaufen, bläst aus dieser Lösung das Pyridin mit N,#?asserdampf ab, fügt zu der heißen Lösung 65o Gewichtsteile 'Natronlauge (38-- B6) und 4009 Zinkstaub und kocht unter Rühren bis Entfärbung eingetreten ist. Jetzt wird noch heiß vom Zinkschlamm abfiltriert und (Iie Brühe in ein Gemenge von goo Gewichtsteilen Sch#vefel,;;,itiremonoli-#7drat und 8ooo GewichtsteilenEishuigsameinlaufengelassen. '-Nach einiger Zeit scheidet sich der Schwefelsäureester des 3 - 31-Diox-#"-4 - 41-diaminodiphenvis ab. Er wird abgesaugt, in Natriumcarbonat gelöst, von etwas Schmutz filtriert und ausgesalzen. Durch Umkristallisieren aus Wasser läßt er sich aus Natriumsalz leicht reinigen. Das Produkt stellt ein weißes Kristallpulver dar, welches sich in Mlasser gut, in organischen Lösungsmitteln sehr schlecht löst und bei :26o' noch nicht im Kapillarrohr geschmolzen ist. Durch Kochen mit verdünnter Schwefelsäure oder Erwärmen mit Salzsäure wird der Ester gespalten, und man erhält das schwefelsaure oder salzsaure Salz des 3 - 3 1-Dioxy- 3 4 - 4:-diaminodipl-lenvis, die beim Erkalten der heißen Lösung auskristallisieren. Sie sind in Wasser lösliche gut kristallisierende Stoffe, die im Kapillarrohr bei 26o' noch nicht geschmolzensind. Das 3.31-Dioxy-4-41-diamüiodiphenyl, läßt sich aus den wäßrigen Lösungen seiner Salze durch vorsichtigen Zusatz von Natriumcarbonat abscheiden. Es ist leicht löslich in wäßrigem Alkali, in Lösung an der Luft leicht oxydabel und schmilzt ans 5oprozentigem Pyridin kristallisiert bei 292' (unkorrigiert) unter vorheriger Bräunung, die etwa bei --30# beginnt.EXAMPLE 100 parts by weight of nitrophenol are added to a mixture of 40 parts by weight of chlorobenzene, 400 parts by weight of pyridine and 92 parts by weight of chlorosulfonic acid and the whole is heated to 80 ° for about four hours with thorough stirring. After the reaction has ended, two layers have formed forms, which are separated from each other. the bottom is allowed to then in a cold solution of 3oo parts by weight enter anhydrous -Natriumcarbonat in. 15oo weight of water, blowing out this solution, the pyridine with N, #? asserdampf from, added to the hot solution 65o parts by weight 'Sodium hydroxide solution (38-- B6) and zinc dust 4009 and boil while stirring until discoloration has set in. Now the zinc sludge is filtered off while still hot and (the broth in a mixture of 100 parts by weight of Sch # vefel, ;;, itiremonoli- # 7drat and 8ooo Parts by weight of ice cream allowed to run in. After some time the sulfuric acid ester of 3 - 31-Diox - # "- 4 - 41-diaminodiphenvis separates out. It is filtered off with suction, in sodium iumcarbonat dissolved, filtered from some dirt and salted out. It can easily be purified from the sodium salt by recrystallization from water. The product is a white crystal powder which dissolves well in Mlasser, very poorly in organic solvents and at: 26o 'has not yet melted in the capillary tube. The ester is cleaved by boiling with dilute sulfuric acid or heating with hydrochloric acid, and the sulfuric or hydrochloric acid salt of 3 - 3 1-dioxy- 3 4 - 4: -diaminodipl-lenvis is obtained, which crystallizes out when the hot solution cools. They are water-soluble substances that crystallize well and have not yet melted in the capillary tube at 26o '. The 3.31-Dioxy-4-41-diamuiodiphenyl can be separated from the aqueous solutions of its salts by carefully adding sodium carbonate. It is easily soluble in aqueous alkali, slightly oxidizable in solution in the air and melts on the 5% pyridine crystallizes at 292 '(uncorrected) with previous browning, which begins around -30 #.

Die in diesem Beispiel angegebenen Mengenverhältnisse lassen sich in weitgehenden Grenzen verändern, Auch kann man an Stelle der Chlorsulfonsäurc ihre Ester verwenden und das Pvridin. durch andere geeignete Basen, %vie Dimeilivlanilin und ähnliche, ersetzen. Die so erhältlichen. Verbinchin gen sollen als Z l'# vischenprodukte zür Darstellung von Iarbstoffen Vorwendung finden. - . The proportions given in this example can be varied within wide limits. Instead of the chlorosulfonic acid, it is also possible to use their esters and the pvridine. replace with other suitable bases such as dimeilivlaniline and the like. The so available. Should gen Verbinchin as Z l '# vischenprodukte gladly answer representation of Iarbstoffen find Vorwendung. -.

Claims (1)

PATENTANSPRUCH: Verfabren zur Darstellun ' g des Schwefelsäureesters des 3-31-Diox-v-4-'41-diarnii-lodiplieiivls und des letzteren selbst, darin bestehend, daß inan den Schwefelsäureester des o-Nitropheliols durch Reduktion in alkalischer Lösung in die entsprechende Hydrazoverbindung überführt, diese in üb- licher M'eise der Benzidintimlagerung unter-Nvirft und den so erhaltenen Schwefelsäureester gegebenenfalls verseift.Claim: Verfabren for Imaging Logo 'g of Schwefelsäureesters of 3-31-Diox-v-4-'41-diarnii-lodiplieiivls and the latter itself, consisting in the inan Schwefelsäureester of the corresponding o-Nitropheliols by reduction in alkaline solution in the Hydrazo compound is transferred, this is subjected to the benzidine residue storage in the usual manner and the sulfuric acid ester thus obtained is optionally saponified.
DEI30336D 1927-02-15 1927-02-15 Process for the preparation of the sulfuric acid ester of 3íñ3-Dioxy-4íñ4-diaminodiphenyl and the latter itself Expired DE488611C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI30336D DE488611C (en) 1927-02-15 1927-02-15 Process for the preparation of the sulfuric acid ester of 3íñ3-Dioxy-4íñ4-diaminodiphenyl and the latter itself

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI30336D DE488611C (en) 1927-02-15 1927-02-15 Process for the preparation of the sulfuric acid ester of 3íñ3-Dioxy-4íñ4-diaminodiphenyl and the latter itself

Publications (1)

Publication Number Publication Date
DE488611C true DE488611C (en) 1930-01-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEI30336D Expired DE488611C (en) 1927-02-15 1927-02-15 Process for the preparation of the sulfuric acid ester of 3íñ3-Dioxy-4íñ4-diaminodiphenyl and the latter itself

Country Status (1)

Country Link
DE (1) DE488611C (en)

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