Synthesis and Reactions of Some 2-Aminobenzothiazoles |
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| Authors: | Jarmila ?tetinová Rudolf Kada Ján Le?ko |
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| Institution: | 1. Department of Organic Chemistry, Faculty of Chemical Technology, Slovak Technical University, SK-812 37, Bratislava, Slovak Republic
2. Laboratory of Mass Spectrometry, Slovak Technical University, SK-81237, Bratislava, Slovak Republic
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| Abstract: | N-(2-Benzothiazolyl)- and N-(6-methoxy-2-benzothiazolyl)cyanoacetamides 4, 5 resulted in the reaction of 2-aminobenzothiazole 1 or its 6-methoxy derivative 2 with 1-cyanoacetyl-3,5-dimethylpyrazole 3. Both cyanoacetylamides 4 and 5 have been transformed into the corresponding 2-oxo-2H-pyrimido2,1-b]-benzothiazole-3-carbonitrile 8 and its 8-methoxy derivative 9 by reaction with triethyl orthoformate, followed by cyclization. |
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