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SU10425A1 - The method of obtaining water-insoluble azo dyes - Google Patents

The method of obtaining water-insoluble azo dyes

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Publication number
SU10425A1
SU10425A1 SU11425A SU11425A SU10425A1 SU 10425 A1 SU10425 A1 SU 10425A1 SU 11425 A SU11425 A SU 11425A SU 11425 A SU11425 A SU 11425A SU 10425 A1 SU10425 A1 SU 10425A1
Authority
SU
USSR - Soviet Union
Prior art keywords
azo dyes
insoluble azo
obtaining water
acetic acid
derivatives
Prior art date
Application number
SU11425A
Other languages
Russian (ru)
Inventor
Ласка Д.Л.
Цитшер А.
Original Assignee
О.И. красочной промышленности акц. общ.
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 О.И. красочной промышленности акц. общ. filed Critical О.И. красочной промышленности акц. общ.
Priority to SU11425A priority Critical patent/SU10425A1/en
Application granted granted Critical
Publication of SU10425A1 publication Critical patent/SU10425A1/en

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

Description

На способ получени  нерастворимы} в воде азокрасителей, состо щий в сочетании диазо-соединений, не содержащих сульфо- или карбоксильной групп, с диацето ацетильными производными диаминов типа СО. СН,. CONH XNH СО СН СО СНз, где X-простой или замещенный в  дре дифениловый остаток выдан патент за № 10422.To the process of obtaining, water-soluble azo dyes, consisting in the combination of diazo compounds not containing sulfo or carboxyl groups, with diacetocetyl derivatives of diamines of the CO type. CH, CONH XNH CO CH CO CH3, where the X-simple or substituted diphenyl residue in the nucleus has been granted patent No. 10422.

Предлагаемое видоизменение этого способа заключаетс  в том, что дис13о-соединени , не содержащие сульфо- или карбоксильной групп, сочетают, вместо диацето-ацетильных производных диамино-диарилов, с другими аналогичными ди-ацилацетильными прои рдными тех же диамино-диарилов. такого рода производные могут быть приготовленыThe proposed modification of this method consists in the fact that dis13o-compounds that do not contain sulfo or carboxyl groups combine, instead of diaceto-acetyl derivatives of diamino-diaryls, with other similar di-acetyltyl derivatives of the same diamino-diaryl. these kind of derivatives can be cooked

нагреванием диамино-дифениловых оснований с соответствующими ацилуксусными эфирами по способу, подобному тому, который описывает Гейдрих (Heidrich), дл  приготовлени  бензидинида диацето-уксусной кислоты (Monatshefte fur Chemie-19 стр. 694).by heating the diamino-diphenyl bases with the corresponding acyl acetic esters according to a method similar to that described by Heidrich for the preparation of diaceto acetic acid benzidine (Monatshefte fur Chemie-19, p. 694).

Бензидинид дибензоил- уксусной кислоты кристаллизуетс  из разбавленного пиридина, в виде тонких, желтых заостренных чешуек, которые , разлага сь, плав тс  при 248° (неточно). Он растворим в лед ной уксусной кислоте и пиридине, мало растворим в спирте, нерастворим в эфире.Dibenzoyl acetic acid benzidinide crystallizes from diluted pyridine as thin, yellow, pointed scales that decompose melt at 248 ° (inaccurate). It is soluble in glacial acetic acid and pyridine, slightly soluble in alcohol, insoluble in ether.

О-толидинид дибензоил-уксусной кислоты образует при кристаллизации из разбавленной уксусной кислотыDibenzoyl-acetic acid O-tolididine forms during crystallization from dilute acetic acid

SU11425A 1926-09-09 1926-09-09 The method of obtaining water-insoluble azo dyes SU10425A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU11425A SU10425A1 (en) 1926-09-09 1926-09-09 The method of obtaining water-insoluble azo dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU11425A SU10425A1 (en) 1926-09-09 1926-09-09 The method of obtaining water-insoluble azo dyes

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU10422A Addition SU30295A1 (en) 1932-02-27 1932-02-27 Automatic double-tooth coupler for railway rolling stock

Publications (1)

Publication Number Publication Date
SU10425A1 true SU10425A1 (en) 1929-07-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU11425A SU10425A1 (en) 1926-09-09 1926-09-09 The method of obtaining water-insoluble azo dyes

Country Status (1)

Country Link
SU (1) SU10425A1 (en)

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