Abstract
The reaction of 2,6-diphenylpyrylium perchlorate with methylamine and various anilines in acetic acid leads to pyridinium salts; 3,4-bispyridinium perchlorates were obtained in dimethylformamide. The reaction of 2,6-diphenylpyrylium perchlorate with hydrazine and the sodium salt of hydroxylamine leads to 3-phenyl-5-phenacyl-2-pyrazoline and -2-isoxazoline.
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See [1] for Communication 10.
Deceased.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 461–464, April, 1982.
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Zvezdina, É.A., Popova, A.N., Pyshchev, A.I. et al. Reactions of heterocyclic cations with nitrogen-containing nucleophiles. 11. Reaction of 2,6-diphenylpyrylium perchlorate with primary amines, hydrazine, and hydroxylamine. Chem Heterocycl Compd 18, 344–347 (1982). https://doi.org/10.1007/BF00503547
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DOI: https://doi.org/10.1007/BF00503547