Abstract
The reaction of 3-acetyl-4,6,6-trimethyl-5,6-dihydro-2-pyrone with the hydrazides of a series of carboxylic acids led to the synthesis of 5-alkyl(cyanomethyl)carbonyl-3,5a,7,7-tetramethylpyrazolino-4,5-c]tetrahydro-2-pyrones, which are the products from cyclization of the intermediately formed alkyl(cyanomethyl)hydrazones of 3-acetyl-4,6,6-trimethyl-5,6-dihydro-2-pyran.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 998–1001, July, 2005.
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Avetissian, A.A., Tokmajian, G.G. & Karapetian, L.V. Reaction of 3-Acetyl-4,6,6-trimethyl-5,6-dihydro-2-pyrone with Carboxylic Acid Hydrazides. Chem Heterocycl Compd 41, 841–844 (2005). https://doi.org/10.1007/s10593-005-0235-z
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DOI: https://doi.org/10.1007/s10593-005-0235-z