DE496903C - Process for the preparation of non-staining thio derivatives of phenols - Google Patents

Process for the preparation of non-staining thio derivatives of phenols

Info

Publication number
DE496903C
DE496903C DEI28563D DEI0028563D DE496903C DE 496903 C DE496903 C DE 496903C DE I28563 D DEI28563 D DE I28563D DE I0028563 D DEI0028563 D DE I0028563D DE 496903 C DE496903 C DE 496903C
Authority
DE
Germany
Prior art keywords
phenols
preparation
staining
thio derivatives
weight
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
DEI28563D
Other languages
German (de)
Inventor
Dr Alfred Thauss
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.)
IG Farbenindustrie AG
Original Assignee
IG 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI28563D priority Critical patent/DE496903C/en
Application granted granted Critical
Publication of DE496903C publication Critical patent/DE496903C/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/651Compounds without nitrogen
    • D06P1/65168Sulfur-containing compounds
    • D06P1/65187Compounds containing sulfide or disulfide groups

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Anti-Oxidant Or Stabilizer Compositions (AREA)

Description

Verfahren zur Darstellung nicht färbender Thioderivate der Phenole Nach dem Verfahren des Patents 400 2q2 und seiner Zusatzpatente werden nicht färbende Thioderivate von Phenolen durch längeres Erhitzen von Phenol, dessen Homologen oder Substitutionsprodukten, wie Halogenphenolen oder Phenolcarbonsäuren, mit Schwefel in Gegenwart von Alkali gewonnen.Process for the preparation of non-coloring thio derivatives of phenols According to the procedure of the patent 400 2q2 and its additional patents are non-coloring Thio derivatives of phenols by prolonged heating of phenol, its homologues or Substitution products, such as halophenols or phenol carboxylic acids, with sulfur obtained in the presence of alkali.

Es hat sich nun gezeigt, daß man das Alkali auch durch neutrale Salze organischer Carbonsäuren, wie Essigsäure, Ameisensäure und schwächerer anorganischer Säuren, wie der hydroschwefligen und salpetrigen Säure, ersetzen kann. Die erforderlichen Mengen sind sehr gering. Weniger als i°/" vom angewandten Phenol bewirkt sofort eine lebhaft einsetzende Schwefelwasserstoffentwicklung und rasch fortschreitende, schon nach mehreren Stunden beendete Sulfidierung der Phenole. Man erhält nach diesem Verfahren die freien Harzsäuren der Thioderivate, die sich durch Aufkochen mit verdünntem Alkali und Eindampfen leicht in die wasserlöslichen Alkalisalze überführen lassen. Beispiel i 38 Gewichtsteile Phenol, 22 Gewichtsteile Schwefel und 0,3 Gewichtsteile ameisensaures Natrium werden unter Rühren langsam ansteigend auf i8o bis 2io° erhitzt und bei letzterer Temperatur mehrere Stunden gehalten, bis die anfänglich lebhafte Schwefelwasserstoffentwicklung aufgehört hat und die Schmelze dickflüssig und schwach grünlich geworden ist. Sie erstarrt dann beim Ausgießen zu einer spröden, glasigen Masse, die sich zu einem hellgrauen Pulver zerreiben läßt. Man löst sie kochend mit der eben erforderlichen Menge Natronlauge und verdampft die Lösung zur Trockene vorteilhaft im Vakuum. Das so gewonnene Natriumsalz des schwefelhaltigen Phenolharzes ist in Wasser leicht löslich mit schwach olivgrünlichem Ton und zeigt im übrigen die gleichen Eigenschaften wie das nach Beispiel i des Patents d.oo 242 erhältliche Produkt. Beispiel 38 Gewichtsteile Phenol, 2o Gewichtsteile Schwefel und o,3 Gewichtsteile Natriumnitrit läßt man, wie im Beispiel i angegeben, aufeinander einwirken, bis die bei etwa i8o° einsetzende und rasch zunehmende Schwefelwasserstoffentwicklung nach etwa 8 Stunden beendet ist. Die erkaltete Schmelze bildet zerrieben ein hellgraues Pulver von den gleichen Eigenschaften wie das in Beispiel i erhaltene Schweflungsprodukt. Die Lösung des Natriumsalzes ist auch in stärkerer Konzentration kaum gefärbt und frei von Gelbstich.It has now been shown that the alkali can also be replaced by neutral salts of organic carboxylic acids, such as acetic acid, formic acid and weaker inorganic acids, such as hydrosulphurous and nitrous acids. The quantities required are very small. Less than 1/1 of the phenol used immediately causes a vigorous evolution of hydrogen sulphide and a rapidly progressing sulphidation of the phenols, which ends after several hours EXAMPLE i 38 parts by weight of phenol, 22 parts by weight of sulfur and 0.3 parts by weight of sodium form are slowly increasing to 110 to 20 ° with stirring and kept at the latter temperature for several hours until the initially vigorous evolution of hydrogen sulfide has ceased and the Melt has become thick and slightly greenish. When poured out, it solidifies to a brittle, glassy mass that can be ground to a light gray powder. It is dissolved by boiling with the required amount of caustic soda and the solution is evaporated to dryness, advantageously in the Va kuum. The sodium salt of the sulfur-containing phenolic resin obtained in this way is easily soluble in water with a slightly olive-greenish tone and otherwise shows the same properties as the product obtainable according to example i of the patent d.oo 242. EXAMPLE 38 parts by weight of phenol, 20 parts by weight of sulfur and 0.3 parts by weight of sodium nitrite are allowed to act on one another, as indicated in Example i, until the rapidly increasing evolution of hydrogen sulfide, which begins at about 180 °, has ended after about 8 hours. The cooled melt forms, when crushed, a light gray powder with the same properties as the sulfurized product obtained in Example i. Even in higher concentrations, the solution of the sodium salt is hardly colored and has no yellow tinge.

Beispiel 3 Ersetzt man im vorigen Beispiel den Katalysator Natriumnitrit durch die gleiche Menge L\ratriumhydrosulfit, so verläuft der Schweflungsvorgang in analoger Weise und führt zu Produkten von gleichen physikalischen, chemischen und färberischen Eigenschaften. An Stelle von Natriumhydrosulfit kann man auch neutrales Natriumsulfit als Katalysator verwenden.Example 3 In the previous example, the sodium nitrite catalyst is replaced by the same amount of sodium hydrosulphite, the sulphurisation process takes place in an analogous manner and leads to products of the same physical, chemical and coloring properties. Instead of sodium hydrosulphite you can also use neutral Use sodium sulfite as a catalyst.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung nicht färbender Thioderivate der Phenole, darin bestehend, daß man Salze organischer Carbonsäuren oder Salze von schwachen anorganischen Säuren bei der Sulfidierung der Phenole als Katalysatoren verwendet. PATENT CLAIM: Process for the preparation of non-coloring thio derivatives of phenols, consisting in using salts of organic carboxylic acids or salts of weak inorganic acids as catalysts in the sulfidation of phenols.
DEI28563D 1926-07-16 1926-07-16 Process for the preparation of non-staining thio derivatives of phenols Expired DE496903C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI28563D DE496903C (en) 1926-07-16 1926-07-16 Process for the preparation of non-staining thio derivatives of phenols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI28563D DE496903C (en) 1926-07-16 1926-07-16 Process for the preparation of non-staining thio derivatives of phenols

Publications (1)

Publication Number Publication Date
DE496903C true DE496903C (en) 1930-04-29

Family

ID=7187070

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI28563D Expired DE496903C (en) 1926-07-16 1926-07-16 Process for the preparation of non-staining thio derivatives of phenols

Country Status (1)

Country Link
DE (1) DE496903C (en)

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