Conclusions
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1.
Trifluoroacetyl isocyanate reacts with γ-vinylpyridine to give 4-oxo-2-trifluoro-methyl-6-(4-pyridyl)-5,6-dihydro-l,3-oxazine.
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2.
α-Vinylpyridine reacts with acyl isocyanates as a diene.
Literature cited
B. A. Arbuzov, N. N. Zobova, and F. B. Balabanova, Izv. Akad. Nauk SSSR, Ser. Khim.,1971, 577.
A. S. Onishchenko, Diene Synthesis [in Russian], Izd. AN SSSR (1963), p. 557.
T. Agawa and S. I. Miller, J. Am. Chem. Soc.,83, 449 (1961).
K. Schenker and J. Druey, Helv. Chim. Acta,42, 1971 (1959).
K. Schenker and J. Druey, Helv. Chim. Acta,45, 1344 (1962).
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2608–2610, November, 1975.
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Zobova, N.N., Rubinova, N.R. & Arbuzov, B.A. Reaction op acyl isocyanates with γ e and α-vinylpyridines. Russ Chem Bull 24, 2497–2499 (1975). https://doi.org/10.1007/BF00921679
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DOI: https://doi.org/10.1007/BF00921679