Abstract
An attempt to obtain Schiff bases of p-(n-alkyl)benzaldehydes with p-aminobenzontrile in the presence of boron trifluoride etherate unexpectedly gave mixtures of 2-[p-(n-alkyl)-phenyl]-6-cyanoquinolines and p-(n-alkyl)benzyl-p-aminobenzontrile; the former have liquid-crystalline properties. Unstable Schiff bases can be obtained only when catalytic amounts of piperidine or p-toluenesulfonic acid are used.
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See [1] for communication I.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1364–1367, October, 1975.
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Titov, V.V., Kovshev, E.I., Karamysheva, L.A. et al. Liquid-crystal compounds II. Reaction of p-(n-alkyl)benzaldehydes with p-aminobenzontrile. Chem Heterocycl Compd 11, 1165–1168 (1975). https://doi.org/10.1007/BF00667615
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DOI: https://doi.org/10.1007/BF00667615