C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
260/552, 260/247
C09B 23/04 (2006.01) C09B 23/14 (2006.01)
Patent
CA 1133923
Abstract of the disclosure: Compounds of the general formula I A - B - A (I) where A is a radical of the formula Image and B is a bridge member of the formula Image .THETA.A and where R1 and R2 independently of one another are un- substituted or hydroxy-, C1-C4-alkoxy-, cyano-, C1-C4- alkoxycarbonyl-, di-C1-C4-alkylamino-, chlorine- or bromine-substituted C1-C4-alkyl, cyclohexyl, benzyl, phenylethyl or phenyl, or R1 and R2 together with the nitrogen are morpho- lino, pyrrolidino, piperidino or N-methylpiperazino, R3 is hydrogen, chlorine, bromine, methyl, ethyl, methoxy, ethoxy or nitro, R4 and R5 independently of one another are hydrogen, C1-C4-alkyl or benzyl, X is oxygen or imino and alkylene is of 2 to 6 carbon atoms and is linear or branched. The compounds of the formula I are particularly suitable for coloring paper pulps.
360590
Eisert Manfred
Grychtol Klaus
Basf Aktiengesellschaft
Robic Robic & Associes/associates
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