Phase-transfer catalyzed acylation of 5(3)-hydroxy-3(5)-substituted-1H-pyrazoles

被引：0
|
作者：
Khalil, Ali Kh [1 ]
Hassan, Mohained A. [1 ]
Mohamed, Mohamed M. [1 ]
El-Sayed, Abeer M. [1 ]
机构：
[1] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt
来源：
INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY | 2006年 / 45卷 / 11期
关键词：
phase-transfer catalysis (PTC); acylation; heterogenous reactions; 1H-pyrazoles; tetrabutylammonium bromide (TBAB); solid/liquid phases;
D O I：
暂无
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
PTC acylation of 5(3)-hydroxy-3(5)-substituted-1H-pyrazoles by different acyl halide reagents at 25 degrees C in the presence of tetrabutylammonium bromide as catalyst has been investigated. This work is aiming to study the comparison of N-versus O- and C-acylation of the starting materials.
引用
收藏
页码：2485 / 2490
页数：6
相关论文
共 50 条
  • [41] Asymmetric route to spirotetracyclic (1S)-5′,11′-dihydro-3H-spiro[cyclopentane-1,10′-dibenzo[a,d]cyclohepten]-3-one derivatives
    Gianotti, Massimo
    Andreotti, Daniele
    Casotto, Davide
    Mattioli, Mario
    Mingardi, Anna
    Pavone, Francesca
    Profeta, Roberto
    Valente, Filippo
    TETRAHEDRON LETTERS, 2011, 52 (02) : 329 - 331
  • [42] The first application of 4-alkoxy-1,1,1-trifluoroalk-3-en-2-ones in a three-component condensation protocol for the synthesis of 3-acyl-4-aryl-2-(trifluoromethyl)-2-hydroxy-3,4,7,8-tetrahydro-2H-chromen-5(6H)-ones
    Bonacorso, Helio G.
    Navarini, Jussara
    Wiethan, Carson W.
    Bortolotto, Guilherme P.
    Paim, Gisele R.
    Cavinatto, Susiane
    Martins, Marcos A. P.
    Zanatta, Nilo
    Caro, Miguel S. B.
    JOURNAL OF FLUORINE CHEMISTRY, 2011, 132 (03) : 160 - 165
  • [43] Synthesis of 6-Aryl-2,11-dihydro-3H-pyrrolo[1,2-e][1,2,4]triazolo[4,3-b] [1,2,5] triazepin-3-ones
    Foldesi, Tamas
    Dancso, Andras
    Volk, Balazs
    Milen, Matyas
    LETTERS IN ORGANIC CHEMISTRY, 2016, 13 (07) : 531 - 535
  • [44] Regiospecific Synthesis of 3H-Pyrido[2,3-b][1,4]diazepin-4(5H)-ones via a Haloform Reaction with the Isolation of N3-[3-Oxo-4,4,4-trichloroalk-1-en-1-yl]-2,3-diaminopyridine Intermediates
    Bonacorso, Helio G.
    Lourega, Rogerio V.
    Porte, Liliane M. F.
    Deon, Everton D.
    Zanatta, Nilo
    Flores, Alex F. C.
    Martins, Marcos A. P.
    JOURNAL OF HETEROCYCLIC CHEMISTRY, 2009, 46 (04) : 603 - 609
  • [45] Derivatives of condensed thieno[2,3-d]-pyrimidines. 20. Synthesis of 2-substituted 5,6-dihydro-8H-pyrano[4′,3′:4,5]thieno[2,3-d] pyrimidin-4(3H)-ones and 5,6,7,8-tetrahydrobenzo-[b]thieno[2,3-d]pyrimidin-4- ones
    Mkrtchyan A.P.
    Noravyan A.S.
    Chem. Heterocycl. Compd., 2006, 3 (392-395): : 392 - 395
  • [46] Convenient selective synthesis of 5,7,8,9-tetrahydro-4H,6H-chromeno[2,3-d][1,3]oxazin-4-ones
    Yu. M. Litvinov
    A. M. Shestopalov
    Russian Chemical Bulletin, 2009, 58 : 479 - 481
  • [47] Convenient selective synthesis of 5,7,8,9-tetrahydro-4H,6H-chromeno[2,3-d][1,3]oxazin-4-ones
    Litvinov, Yu. M.
    Shestopalov, A. M.
    RUSSIAN CHEMICAL BULLETIN, 2009, 58 (02) : 479 - 481
  • [48] Diastereoselective Synthesis of 2-Arylmethylene-6-hydroxyspiro[4.5]deca-7-ones via FeCl3•6H2O-Catalyzed Spiroannulation/Hydride Transfer of 6-(5-Arylpent-4-yn-1-yl)-7oxabicyclo[4.1.0]heptan-2-ols
    Lin, Hsin-Hui
    Lee, Kuan-Yi
    Chen, Yin-An
    Liu, Chi-Fan
    Yeh, Ming-Chang P.
    JOURNAL OF ORGANIC CHEMISTRY, 2014, 79 (23): : 11802 - 11811
  • [49] Synthesis of 8-R-7-amino-3-tert-butylpyrazolo- [5,1-c][1,2,4]triazin-4(6H)-ones derivatives
    L. M. Mironovich
    M. V. Kostina
    Chemistry of Heterocyclic Compounds, 2012, 47 : 1286 - 1289
  • [50] SYNTHESIS OF 8-R-7-AMINO-3-tert-BUTYLPYRAZOLO-[5,1-c][1,2,4]TRIAZIN-4(6H)-ONES DERIVATIVES
    Mironovich, L. M.
    Kostina, M. V.
    CHEMISTRY OF HETEROCYCLIC COMPOUNDS, 2012, 47 (10) : 1286 - 1289
12345