Reaction of 4-aryl-3-thiosemicarbazides
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Rafat M. Mohareb; Sherif M. Sherif
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Article
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1997
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John Wiley and Sons
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English
โ 203 KB
๐ 2 views
The reaction of 3-aryl-3-thiosemicarbazides 1a-d with carbon disulfide in alkaline medium affords the nonisolable sulfide salts 2a-d. The latter undergo in situ heterocyclization with some โฃ-halogenated compounds, e.g., 3a,b and 13, to afford polyfunctionally substituted 2,3-dihydrothiazoles 4a-e an