Abstract
Substituted hexafluoroacetone imines react with 1-(2-cyanoguanidino) alkylphosphonates at the C≡N group at −5-0°C, forming [2+4]-cycloaddition products, which are phosphorus-containing 4,4-bis(trifluoromethyl)1,3,5-oxadiazines. The reaction products are readily alkylated by substituted hexafluoroacetone imines at the nitrogen atom of the guanidine fragment. The two reactions are accompanied by tautomeric transformations of the guanidine fragment of the molecules. An NMR spectral analysis was carried out.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2815–2819, December, 1989.
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Aksinenko, A.Y., Sokolov, V.B., Korenchenko, O.V. et al. Reaction of phosphorus-containing cyanoguanidines with hexafluoroacetone imines. Russ Chem Bull 38, 2580–2583 (1989). https://doi.org/10.1007/BF00962449
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DOI: https://doi.org/10.1007/BF00962449