Abstract
The reaction of 1-chloro- and 1,4-dichloro-2-methylphthalazinium salts with hydrazine leads to the formation of hydrazones and azines of the corresponding 2-methylphthalazones, the ratio of which depends on the reaction conditions. Symmetrical azines of 4-substituted phthalazones exist in the EE'E" form, while azines of 2-methyl-4-substituted phthalazones exist in the ZE'Z" form.
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Communication LII of the series “Hydrazones.” See [1] for communication LI.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1264–1267, September, 1977.
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Buzykin, B.I., Bystrykh, N.N., Stolyarov, A.P. et al. Synthesis and some properties of 2-methylphthalazone hydrazones. Chem Heterocycl Compd 13, 1020–1023 (1977). https://doi.org/10.1007/BF00472464
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DOI: https://doi.org/10.1007/BF00472464