Conclusions
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1.
Benzoyl and trichloroacetyl isocyanates react with p-dimethylaminobenzalazine and benzalazine on the type of bis-1,3-dipolar cycloaddition to give substituted triazolo[1,2-a]triazoles.
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2.
Trifluoroacetyl isocyanate reacts with aromatic aldazines on the type of mono-[4+2]-cycloaddition. Trichloroacetyl isocyanate reacts in a similar manner with p-methoxybenzalazine.
Literature cited
O. Tsuge and S. Kanemasa, Bull. Chem. Soc. Jpn.,45, 3591 (1972).
O. Tsuge, Repts. Res. Inst. Ind. Sci. Kyushu Univ., 7 (1976).
J. R. Bailey and N. H. Moore, J. Am, Chem. Soc.,39, 279 (1917).
J. R. Bailey and A. T. McPherson, J. Am. Chem. Soc.,39, 1322 (1917).
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Translated from Izvestiya Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2784–2786, December, 1978.
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Arbuzov, V.A., Zobova, N.N. & Rubinova, N.R. Reaction of acyl isocyanates with aromatic aldazines. Russ Chem Bull 27, 2484–2486 (1978). https://doi.org/10.1007/BF00941102
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DOI: https://doi.org/10.1007/BF00941102