Abstract
Reaction of 4-(2-, 3-, 4-pyridyl, or 2-quinolyl)but-3-en-2-ones with carbethoxymethylenetriphenylphosphorane and subsequent hydrolysis gives 3-methyl-5-(2-, 3-, 4-pyridyl, or 2-quinolyl)-2,4-pentadienoic acids and also 3-methyl-4-(2-, 4-pyridyl-, or 2-quinolylmethyl)but-2-en-4-olides as products of cyclization of the corresponding pentadienoic acids.
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D. P. Popa and K. I. Kuchkova, Izv. Akad. Nauk Mold. SSR, Ser. Biol. Khim., No. 6, 54 (1987).
K. I. Kuchkova and D. P. Popa, Izv. Akad. Nauk Mold. SSR, Ser. Biol. Khim., No. 1, 77 (1986).
V. N. Gramenitskaya, E. A. Koz'mina, L. S. Golovkina, and N. S. Vul'fson, Zh. Org. Khim., 17, 1892 (1981).
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 653–656, May, 1991.
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Kuchkova, K.I. Synthesis of 3-methyl-5-(hetaryl)-2,4-pentadienoic acids from aldehydes. Chem Heterocycl Compd 27, 520–523 (1991). https://doi.org/10.1007/BF00473998
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DOI: https://doi.org/10.1007/BF00473998