Heterocyclic monoazo dyes derived from 2-(p-aminophenyl)oxazolo[4,5-b]pyridine and 7-(p-aminophenyl)-4H-[1,3,4]thiadiazolo[2,3-c][1,2,4]triazin-4-one

被引：0
|
作者：
Heravi, MM [1 ]
Ibrahimian, RA [1 ]
Bakavoli, M [1 ]
Zavar, MHA [1 ]
机构：
[1] Ferdowsi Univ, Sch Sci, Dept Chem, Mashhad, Iran
来源：
INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY | 1997年 / 36卷 / 11期
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中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
2-(p-Aminophenyl)oxazolo [4,5-b]pyridine (1; y = 0) has been diazotized and coupled with aniline, N, N-diethylaniline and phenol giving the monoazo dyes 2. These compounds are quaternized to give the cationic dyes 9 and 10. 4-Amino-6-methyl-1,2,4-triazine-3(2H)-thion-5-one 4 is reacted with p-aminobenzoic acid in polyphosphoric acid to afford 7-(p-aminophenyl)3-methyl-4H-[1,3,4]thiadiazolo[2,3-c][1,2,4] triazin-4-one 3. A series of monoazo dyes has been obtained using aniline, N, N-diethylaniline and phenol as coupling components and diazotized 3 as diazo compound.
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页码：1025 / 1029
页数：5
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