Heterocycles

Acid hydrolysis of 4-amino-3-quinolinesulfonamides (3) gives 1, 4-dihydro-4-oxo-3-quinolinesulfonamides (4), 4-aminoquinolines (5) or a mixture of these compounds …

L Skrzypek

文献索引：Skrzypek, Leszek Heterocycles, 1998 , vol. 48, # 6 p. 1249 - 1254

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被引用次数: 2

摘要

An expeditious, 4-step procedure is described for the conversion of bulk-scale accessible D- xylose into 5-hydroxymethyl-1-phenylpyrazole-3-carboxaldehyde (3), which, in turn, is converted into various pyrazole building blocks with versatile application profiles, such as