Conclusions
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1.
By means of the IR, NMR, and mass spectra of the reaction products of alkoxymethylamines and diaminomethanes with bis(trifluoromethyl)ketene it was shown that these adducts are formed via addition to the C=C bond of the starting ketene.
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2.
The counter synthesis of the esters ofα-morpholinomethylhexafluoroisobutyric acid was accomplished by the Mannich condensation of the esters ofα-hydrohexafluoroisobutyric acid with methoxy-methylm rpholine.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 176–179, January, 1973.
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Urushadze, M.V., Abduganiev, E.G., Samoilova, Z.E. et al. Structure of adducts of bis(trifluoromethyl)ketene with methoxymethylamines and diaminomethanes. Russ Chem Bull 22, 182–184 (1973). https://doi.org/10.1007/BF00854158
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DOI: https://doi.org/10.1007/BF00854158