Abstract
The reaction of 5-halo- and 5-nitrofurfurals with methyl ethyl ketone was investigated. It was established that the 5-halofurfurals form 1,5-bis (5′-halo-2′-furyl)-2-methyl-1,4-pentadien-3-ones in alkaline media. In acid medium, 5-nitrofurfural gives primarily 1-(5′-nitro-2′-furyl)-2-methyl-1-buten-3-one, which readily condenses with halofurfurals in alkaline media. The IR spectra of the pentadienones are presented.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1162–1166, September, 1971.
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Nazarova, Z.N., Babeshkina, L.D. Condensation of α-substituted furfurals with methyl ethyl ketone. Chem Heterocycl Compd 7, 1092–1096 (1971). https://doi.org/10.1007/BF00510008
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DOI: https://doi.org/10.1007/BF00510008