Summary
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1.
Four 3,5-dialkyl-N-benzoyltyrosines and two 3,5-dialkyltyrosine hydrochlorides were synthesized.
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2.
It was shown that 4-p-hydroxybenzylidene-2-phenyl-2-oxazolin-5-ones can show keto-enol tautomerism.
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Literature cited
G. A. Nikiforov, K. M. Dyumaev, A. A. Volod'kin, and V. V. Ershov, Izv. AN SSSR. Otd. khim. n.1962, 1836.
T. Coffild, A. Ecke, and A. Kolka, J. Amer. Chem. Soc.,79, 5019 (1957).
L. A. Cohen and W. H. Jones, J. Amer. Chem. Soc.,84, 1629 (1962).
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The authors thank N. M. Émanuél' for constant interest in the work.
Translated from Izvestiya Akademii Nauk SSSR, Setiya Khimicheskaya, No. 6, pp. 1068–1073, June, 1964
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Nikiforov, G.A., Dyumaev, K.M. Inhibitors of free-radical reactions Communication 5. Synthesis of 3,5-dialkyltyrosines. Russ Chem Bull 13, 991–994 (1964). https://doi.org/10.1007/BF01141653
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DOI: https://doi.org/10.1007/BF01141653