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
关键词：
D O I：
暂无
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.
引用
收藏
页码：1025 / 1029
页数：5
相关论文
共 50 条
  • [21] Synthesis of 1,3,4-Thiadiazolo[2′,3′:2,3]imidazo[4,5-b]indoles
    Jafari, Behzad
    Safarov, Sayfidin
    Khalikova, Muattar
    Ehlers, Peter
    Langer, Peter
    SYNLETT, 2019, 30 (15) : 1791 - 1794
  • [22] REGIOSELECTIVE IMINOPHOSPHORANE-MEDIATED ANNELATION OF A 1,3,4-THIADIAZOLE RING INTO A 1,2,4-TRIAZINE RING - PREPARATION OF NOVEL MESOIONIC COMPOUNDS DERIVED FROM [1,3,4]THIADIAZOLO[2,3-C][1,2,4]TRIAZINES AND [1,3,4]THIADIAZOLO[3,2-D][1,2,4]TRIAZINES
    MOLINA, P
    ALAJARIN, M
    LOPEZLAZARO, A
    TETRAHEDRON, 1991, 47 (33) : 6747 - 6758
  • [23] Synthesis and properties of 2-(2-furyl)[1,3]oxazolo[4,5-b]pyridine
    M. M. El’chaninov
    A. A. Aleksandrov
    E. V. Illenzeer
    Russian Journal of Organic Chemistry, 2014, 50 : 1826 - 1828
  • [24] Synthesis and properties of 2-(2-furyl)[1,3]oxazolo[4,5-b]pyridine
    El'chaninov, M. M.
    Aleksandrov, A. A.
    Illenzeer, E. V.
    RUSSIAN JOURNAL OF ORGANIC CHEMISTRY, 2014, 50 (12) : 1826 - 1828
  • [25] IMINOPHOSPHORANE-MEDIATED SYNTHESIS OF FUSED [1,3,4]THIADIAZOLES - PREPARATION OF IMIDAZO[2,1-B][1,3,4]THIADIAZOLES AND [1,3,4]THIADIAZOLO-[2,3-C][1,2,4]TRIAZINE DERIVATIVES
    MOLINA, P
    LORENZO, A
    VILAPLANA, MJ
    ALLER, E
    PLANES, J
    HETEROCYCLES, 1988, 27 (08) : 1935 - 1944
  • [26] 7-Chloro-3-phenylbenzo[4,5]thiazolo[2,3-c][1,2,4]triazole
    Fun, Hoong-Kun
    Asik, Safra Izuani Jama
    Himaja, M.
    Munirajasekhar, D.
    Sarojini, B. K.
    ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, 2011, 67 : O2810 - +
  • [27] A convenient and general synthesis of a novel heterocyclic system; 5H-[1,3,4]thiadiazolo[2,3-d] [1,2,4]triazin-5-ones
    Heravi, MM
    Rajabzadeh, G
    Rahimizadeh, M
    Bakavoli, M
    Ghassemzadeh, M
    PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS, 2001, 174 : 129 - 132
  • [28] STUDIES ON COUMARIN DERIVATIVES .14. A FACILE ONE-STEP PREPARATION OF THIADIAZOLO[2,3-C][1,2,4]TRIAZIN-4-ONES
    RAO, VR
    RAMANNA, S
    RAO, TVP
    NATIONAL ACADEMY SCIENCE LETTERS-INDIA, 1994, 17 (11-12): : 217 - 219
  • [29] A convenient synthesis of new [1,2,4]triazolo[3′,4′:2,3][1,3]thiazolo [4,5-b]quinoxalines
    Bakavoli, M
    Reihani, B
    Rahimizadeh, M
    Nikpour, M
    PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS, 2006, 181 (01) : 99 - 104
  • [30] 1,2,4-TRIAZINES AND CONDENSED DERIVATIVES .4. SNYTHESIS OF 3,6- AND 3,7-DIMETHYL-4H-THIAZOLO[2,3-C] [1,2,4]TRIAZIN-4-1
    DOLESCHALL, G
    LEMPERT, K
    ACTA CHIMICA ACADEMIAE SCIENTARIUM HUNGARICAE, 1967, 53 (04): : 397 - +
12345