Synthesis and reactivity of 2-(benzothia
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Ahmad M. Farag; Kamal M. Dawood
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Article
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1997
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John Wiley and Sons
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English
โ 184 KB
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The novel, highly versatile 2-(benzothiazol-2-yl)-1bromo-1,2-ethanedione-1-arylhydrazones 3 were prepared and their behavior toward some nucleophiles was investigated. Thus, reaction of 3 with the sodium salt of malononitrile afforded the aminopyrazolecarbonitriles 5 that undergo cyclocondensation w