RO79485B1 - Colorant stilbenic direct, complexat cu cupru ,si procedeu de obtinere a acestuia - Google Patents

Colorant stilbenic direct, complexat cu cupru ,si procedeu de obtinere a acestuia

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Publication number
RO79485B1
RO79485B1 RO100716A RO10071680A RO79485B1 RO 79485 B1 RO79485 B1 RO 79485B1 RO 100716 A RO100716 A RO 100716A RO 10071680 A RO10071680 A RO 10071680A RO 79485 B1 RO79485 B1 RO 79485B1
Authority
RO
Romania
Prior art keywords
formula
dye
monoazoic
copper
complexed
Prior art date
Application number
RO100716A
Other languages
English (en)
Other versions
RO79485A2 (ro
Inventor
Ioan Prejmereanu
STELIAN BîRLEA
Constantin Balaur
Original Assignee
îNTREPRINDEREA DE MEDICAMENTE SI COLORANTI "SINTOFARM"
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 îNTREPRINDEREA DE MEDICAMENTE SI COLORANTI "SINTOFARM" filed Critical îNTREPRINDEREA DE MEDICAMENTE SI COLORANTI "SINTOFARM"
Priority to RO100716A priority Critical patent/RO79485B1/ro
Publication of RO79485A2 publication Critical patent/RO79485A2/ro
Publication of RO79485B1 publication Critical patent/RO79485B1/ro

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

Abstract

Colorant stilbenic direct complexat cu cupru, rezistent la lumina, cu nuanta brun, caracterizat prin aceea ca este constituit dintr-un rest de compus monoazoic obtinut prin diazotarea acidului 2-aminofenol-4-sulfonic si cuplare cu m+anisidina cu formula I: (vezi form. in desc.) si o componenta de condensare reprezentata de acidul 4,4'-dinitrostilben-2,2'-disulfonic într-un raport molar compus monoazoic:componenta de condensare de circa 1:0,8. Procedeu de obtinere a unui colorant stilbenic conform revendicarii 1 caracterizat prin aceea ca diazoteaza acidul 2-aminofenol-4-sulfonic cu formula II: cu azotit sodiu în prezenta de acid clorhidric la temperatura de 18....20 degree C si se cupleaya cu m+anisidina cu formula III: (veyi form. in desc.) sub forma de clorhidrat la temperatura de 20....40 degree C în prezenta de acetat de sodiu pentru obtinerea unui colorant monoazoic cu firmula I, care se condenseaza în continuare cu acid 4,4'-dinitristilben-2,2' -disulfonic cu formula IV: (veyi form. in desc.)........
RO100716A 1980-04-04 1980-04-04 Colorant stilbenic direct, complexat cu cupru ,si procedeu de obtinere a acestuia RO79485B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO100716A RO79485B1 (ro) 1980-04-04 1980-04-04 Colorant stilbenic direct, complexat cu cupru ,si procedeu de obtinere a acestuia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO100716A RO79485B1 (ro) 1980-04-04 1980-04-04 Colorant stilbenic direct, complexat cu cupru ,si procedeu de obtinere a acestuia

Publications (2)

Publication Number Publication Date
RO79485A2 RO79485A2 (ro) 1982-07-06
RO79485B1 true RO79485B1 (ro) 1983-04-30

Family

ID=20108320

Family Applications (1)

Application Number Title Priority Date Filing Date
RO100716A RO79485B1 (ro) 1980-04-04 1980-04-04 Colorant stilbenic direct, complexat cu cupru ,si procedeu de obtinere a acestuia

Country Status (1)

Country Link
RO (1) RO79485B1 (ro)

Also Published As

Publication number Publication date
RO79485A2 (ro) 1982-07-06

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