The reaction of (2E,6E)-bis(chloromethylidene)thiomorpholin-4-amine and -selenomorpholin-4-amine with propionaldehyde, benzaldehyde, or 4-pyridinecarbaldehyde in benzene in the presence of catalytic amounts of formic acid gave the corresponding hydrazones, the N-(organylmethylidene)-(2E,6E)bis-(chloromethylidene)thiomorpholin-4-amines and -selenomorpholin-4-amines, as trans isomers. The structure of the hydrazones was confirmed by 1H and 13C NMR, as well as 2D 1H–1H NOESY experiments.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 852–856, May, 2013.
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Martynov, A.V., Makhaeva, N.A. & Amosova, S.V. N-(Organylmethylidene)bis(chloromethylidene)thiomorpholin-4-amines and -selenomorpholin-4-amines. Chem Heterocycl Comp 49, 797–801 (2013). https://doi.org/10.1007/s10593-013-1311-4
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DOI: https://doi.org/10.1007/s10593-013-1311-4