Email this article 
Hide
Show all
OPEN ACCESS | 
PEER-REVIEWED |
RESEARCH ARTICLE
|
DOWNLOAD PDF
|
VIEW FULL-TEXT PDF
| TOTAL VIEWS
Reactions with heterocyclic amidines: Synthesis of several new pyrazolo[1,5-a]pyrimidines and pyrazolo[1,5-a][1,3,5]triazines
Husien Hasan Abbas-Temirek (1)
, Ahmed Mohammed Abo-Bakr (2,*) (1) Chemistry Department, Faculty of Science, South Valley University, Qena, 83523 Egypt
(2) Chemistry Department, Faculty of Science, South Valley University, Qena, 83523 Egypt
(*) Corresponding Author
Received: 18 Nov 2015 | Revised: 27 Dec 2015 | Accepted: 01 Jan 2016 | Published: 31 Mar 2016 | Issue Date: March 2016
Abstract
N-Bis(methylthio)methylenecyanamide (1) was allowed to react with ethylcyanoacetate or malononitrile in the presence of potassium carbonate in dimethylsulfoxide to yield the urea derivatives (3a,b), which on treatment with hydrazine hydrater resulted the corresponding aminopyrazole derivatives (4a,b). The cyclic amidine 5-amino-3-ureido-1H-pyrazole-4-carboxylic acid ethyl ester (4a) is found to be useful intermediate for the synthesis of new pyrazolopyrimidine and pyrazolotriazine derivatives (5-22a,b). The chemical structures of the synthesized compounds (3a,b-22a,b) were characterized by their elemental analyses, FT-IR, 1H 13C NMR and mass spectra.
Keywords
Full Text:
PDF
DOI: 10.5155/eurjchem.7.1.107-114.1369
Links for Article
| | | | | | |
| | | | | | |
| | | |
Related Articles
Article Metrics
This Abstract was viewed 1567 times |
PDF Article downloaded 551 times
Funding information
South Valley University, Qena, 83523 Egypt
Citations
[1]. Amal Al-Azmi
Pyrazolo[1,5-a]pyrimidines: A Close Look into their Synthesis and Applications
Current Organic Chemistry 23(6), 721, 2019
DOI: 10.2174/1385272823666190410145238
[2]. Ranjana Aggarwal, Suresh Kumar
5-Aminopyrazole as precursor in design and synthesis of fused pyrazoloazines
Beilstein Journal of Organic Chemistry 14, 203, 2018
DOI: 10.3762/bjoc.14.15
[3]. Mohamed A. Salem, Mohamed H. Helal, Moustafa A. Gouda, Hala H. Abd EL-Gawad, Marwa A. M. Shehab, Abeer El-Khalafawy
Recent synthetic methodologies for pyrazolo[1,5-a]pyrimidine
Synthetic Communications 49(14), 1750, 2019
DOI: 10.1080/00397911.2019.1604967
[4]. Abdolali Alizadeh, Azar Rostampoor
Efficient One Pot and Chemoselective Synthesis of Polysubstituted Dihydro‐6 H ‐chromeno[4,3‐ d ]pyrazolo[1,5‐ a ]pyrimidin‐6‐ones via a Four‐Component Reaction
ChemistrySelect 7(26), , 2022
DOI: 10.1002/slct.202200299
[5]. Douaa Salman AlMarzouq, Omniya Sayed Zaky, Abdulaziz Abdulrazaq AlNajjar, Kamal Usef Sadek
Pressure as effective green technology for synthesis of polyfunctionally substituted heteroaromatics: Synthesis of a variety of pyrazolo[1,5-a]pyrimidines
European Journal of Chemistry 7(3), 347, 2016
DOI: 10.5155/eurjchem.7.3.347-351.1473
References
[1]. Marcos, P. M.; Elisandra, S.; Clarissa, P. F.; Fernanda, A. R.; Helio, G. B.; Nilo, Z. J. Braz. Chem. Soc. 2009, 20(2), 205-213.
http://dx.doi.org/10.1590/S0103-50532009000200003
[2]. Ghozlan, S. A. S.; Abdelrazek, F. M.; Mona, H. M.; Khaled, E. A. J. Heterocyclic. Chem. 2010, 47, 1379-1385.
http://dx.doi.org/10.1002/jhet.482
[3]. Liekens, S.; Bronckaers, A.; Balzarini, J. Lancet Oncol. 2009, 10(6), 628-635.
http://dx.doi.org/10.1016/S1470-2045(09)70037-3
[4]. Novinson, T.; Bhooshan, B.; Okabe, T.; Revankar, G. R.; Wilson, H. R.; Robins, R. K.; Senga, K. J. Med. Chem. 1976, 19, 512-516.
http://dx.doi.org/10.1021/jm00226a013
[5]. Asem, S. D.; Shunan, K.; Jai, N. V. J. Mol. Divers. 2015, 19(4), 759-771.
http://dx.doi.org/10.1007/s11030-015-9606-2
[6]. Senga, K.; Novinson, T.; Wilson, H. R.; Robins, R. K. J. Med. Chem. 1981, 24, 610-613.
http://dx.doi.org/10.1021/jm00137a023
[7]. Wedad, M. A.; Tahir, M. I. M.; Siti-Noor-Adnalizawati, A.; Siti-Farah, H.; Nazlina, I.; Yaacob, W. A. Eur. J. Med. Chem. 2013, 64, 464-476.
http://dx.doi.org/10.1016/j.ejmech.2013.04.029
[8]. Essam, A.; Said, A. S.; Assy, M. G.; Atef, M. A. Am. J. Org. Chem. 2013, 3(1), 16-23.
[9]. Aymn, E. R.; Mohamed, I. H.; Randa, E. A.; Jehan, A. M. Bioorgan. Med. Chem. 2008, 16(15), 7102-7106.
http://dx.doi.org/10.1016/j.bmc.2008.06.054
[10]. Refaee, M.; Ahmed, K. E.; Mahmoud, F. I.; Sayed, A. S. Eur. J. Chem. 2011, 2(3), 347-355.
http://dx.doi.org/10.5155/eurjchem.2.3.347-355.168
[11]. Charles, Q. H.; Keith, M. W.; Dimitri, E. G.; James, R. M.; Chen, C. Bioorg. Med. Chem. Lett. 2004, 14(15), 3943-3947.
http://dx.doi.org/10.1016/j.bmcl.2004.05.056
[12]. Suzuki, M.; Iwasaki, H.; Fujikawa, Y.; Sakashita, M.; Kitahara, M.; Sakoda, R. Bioorg. Med. Chem. Lett. 2001, 11, 1285-1288.
http://dx.doi.org/10.1016/S0960-894X(01)00203-7
[13]. Almansa, C.; Merlos, M.; Rafanell, J. G.; Arriba, A. F.; Cavalcanti, F. I.; Gomez, I. A.; Miralles, A. J. Med. Chem. 2001, 44, 350-361.
http://dx.doi.org/10.1021/jm0009383
[14]. Fraley, M. E.; Hoffman, W. F.; Rubino, R. S.; Hungate, R. W.; Tebben, A. J.; Rutledge, R. Z.; Mcfall, R. C.; Huckle, W. R.; Kendall, R. I.; Coll, K. E.; Thomas, K. A. Bioorg. Med. Chem. Lett. 2002, 12(19), 2767-2770.
http://dx.doi.org/10.1016/S0960-894X(02)00525-5
[15]. Mark, E. F.; William, F. H.; Robert, S. R.; Randall, W. H.; Andrew, J. T.; Ruth, Z. R.; Rosemary, C. M.; William, R. H.; Richard, L. K.; Kathleen, E. C.; Kenneth, A. T. Bioorg. Med. Chem. Lett. 2002, 12, 3537-3541.
http://dx.doi.org/10.1016/S0960-894X(02)00827-2
[16]. Hantzsch, A.; Wolvekamp, M. Justus liebigs Ann. Chem. 1904, 331, 265-297.
http://dx.doi.org/10.1002/jlac.19043310302
[17]. Gompper, R.; Gang, M.; Saygin, F. Tetrahedron Lett. 1966, 7(17), 1885-1889.
http://dx.doi.org/10.1016/S0040-4039(00)90276-4
[18]. Erra-Balsells, R.; Frasca, A. R. Austr. J. Chem 1988, 41(1), 103-110.
http://dx.doi.org/10.1071/CH9880103
[19]. Biondic, M. C.; Erra-Balsells, R. J. Photochem. Photobiol. , Sec. A Chem. 1990, 51, 341-353.
http://dx.doi.org/10.1016/1010-6030(90)87068-M
[20]. Tominaga, Y.; Ohno, S.; Fujito, H.; Mazume, H. J. Heterocyclic. Chem. 1991, 28, 1039-1042.
http://dx.doi.org/10.1002/jhet.5570280434
[21]. Sadek, K. U.; Selim, N. A.; Elnagdi, M. H.; Otto, H. H. Bull. Chem. Soc. Jpn. 1993, 66, 2927-2930.
http://dx.doi.org/10.1246/bcsj.66.2927
[22]. Ibrahim, N. S.; Sadek, K. U.; Abdel-Al, F. A. Arch. Pharm. (Weinheim) 1987, 320, 240-246.
http://dx.doi.org/10.1002/ardp.19873200310
[23]. Hassanien, A. A.; Amrb, A. E.; Ghozlan, S. A. S. J. Chin. Chem. Soc. 2000, 47 (6), 1273-1278.
http://dx.doi.org/10.1002/jccs.200000176
[24]. Dieler, R. K. Tetrahedron 1986, 42(12), 3029-3096.
http://dx.doi.org/10.1016/S0040-4020(01)87376-2
[25]. Elgemeie, G. H.; Elghandour, A. H.; Elzanate, A. M.; Ahmed, S. A. J. Chem. Soc., Perkin Trans. I 1997, 21, 3285-3289.
[26]. Schmidt, H. W.; Junek, H. Monatsh. Chem. 1977, 108(4), 895-900.
http://dx.doi.org/10.1007/BF00898055
[27]. Reimlinger, H.; VanOverstaeten, A. Chem. Ber. 1961, 94(4), 1036-1041.
http://dx.doi.org/10.1002/cber.19610940420
How to cite
The other citation formats (EndNote | Reference Manager | ProCite | BibTeX | RefWorks) for this article can be found online at: How to cite item
DOI Link: https://doi.org/10.5155/eurjchem.7.1.107-114.1369
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
Save to Zotero
Save to Mendeley
European Journal of Chemistry 2016, 7(1), 107-114 | doi: https://doi.org/10.5155/eurjchem.7.1.107-114.1369 | Get rights and content
Refbacks
- There are currently no refbacks.
Copyright (c)
© Copyright 2010 - 2022 • Atlanta Publishing House LLC • All Right Reserved.
The opinions expressed in all articles published in European Journal of Chemistry are those of the specific author(s), and do not necessarily reflect the views of Atlanta Publishing House LLC, or European Journal of Chemistry, or any of its employees.
Copyright 2010-2022 Atlanta Publishing House LLC. All rights reserved. This site is owned and operated by Atlanta Publishing House LLC whose registered office is 2850 Smith Ridge Trce Peachtree Cor GA 30071-2636, USA. Registered in USA.