Abstract
The sequential conversion of 5-hydroxy-5-methyl-4-oxo-3-arylpyrrolidino [1,2-b]pyrazoles to 5-methyl-5-chloro4-oxo-, 4-hydroxy-5-methyl-5-chloro-, and 5-methyl-4-oxo-3-arylpyrrolidino[1,2-b]pyrazoles and the HuangMinlon reduction of the last afforded 3-aryl-5-methylpyrrolidino[1,2-b]pyrazoles.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 49–51, January, 1994.
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Kuz'menok, N.M., Zvonok, A.M. Synthesis of 3-aryl-5-methylpyrrolidino[1,2 b]pyrazoles. Chem Heterocycl Compd 30, 44–46 (1994). https://doi.org/10.1007/BF01164730
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DOI: https://doi.org/10.1007/BF01164730