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Regioselective Synthesis of Some Pyrazole Scaffolds Attached to Benzothiazole and Benzimidazole Moieties
Joint Authors
Mabkhot, Yahia Nasser
Kheder, Nabila A.
Zahian, Fawzia R.
Mohamed, Sara S.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-10
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Condensation of 2-(benzothiazol-2-yl)acetonitrile (1) or 2-(1-methyl-1H-benzimidazol-2-yl)acetonitrile (2) with thiophene-2-carbaldehyde afforded the corresponding acrylonitrile derivatives 3 or 4, respectively.
The 1,3-dipolar cycloaddition reaction of the acrylonitrile 3 or 4 with nitrile-imine 6 gave novel pyrazole derivatives pendant to benzothiazole and benzimidazole.
The pyrazoline derivative 7 was converted into the corresponding pyrazole derivative 11 via thermal elimination of hydrogen cyanide upon heating in sodium ethoxide solution.
The structures of the synthesized products were confirmed by IR, 1H NMR, and mass spectral techniques.
American Psychological Association (APA)
Kheder, Nabila A.& Mabkhot, Yahia Nasser& Zahian, Fawzia R.& Mohamed, Sara S.. 2014. Regioselective Synthesis of Some Pyrazole Scaffolds Attached to Benzothiazole and Benzimidazole Moieties. Journal of Chemistry،Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-1040022
Modern Language Association (MLA)
Kheder, Nabila A.…[et al.]. Regioselective Synthesis of Some Pyrazole Scaffolds Attached to Benzothiazole and Benzimidazole Moieties. Journal of Chemistry No. 2014 (2014), pp.1-5.
https://search.emarefa.net/detail/BIM-1040022
American Medical Association (AMA)
Kheder, Nabila A.& Mabkhot, Yahia Nasser& Zahian, Fawzia R.& Mohamed, Sara S.. Regioselective Synthesis of Some Pyrazole Scaffolds Attached to Benzothiazole and Benzimidazole Moieties. Journal of Chemistry. 2014. Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-1040022
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1040022