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La 2, 2,4,4-tetrametil-azetidina (XI), è stata preparata per la prima volta con ottime rese, a partire da 2, 2, 5, 5-tetrametil-3-pirrolidone (I), attraverso i seguenti intermedi: 1-benzoil-2, 2, 5, 5-tetrametil-3-pirrolidone (II), 1-benzoil-2, 2, 5, 5-tetrametil-3, 4-pirrolidindione (III), acido 1-benzoil-3-idrossi-2, 2, 4, 4-tetrametil-3-azetidin-carbossilico (V), 1-benzoil-2, 2, 4, 4-tetrametil-3-azetidinone (VII), 1-benzoil-2, 2, 4, 4-tetrametil-azetidina (IX) e 1-benzil-2, 2, 4, 4-tetrametil-azetidina (X).
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The authours gratefully acknowledge the collaboration of Dr. G.Maffi for the interpretation of the IR-spectra, of Dr. A.Degli Angeli for the interpretation of the NMR-spectra and of Mr. E.Garegnani for technical assistance.
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Dall'Asta, L., Pedrazzoli, A. Synthesis of 2,2,4,4-tetramethyl-azetidine. Experientia 26, 1188–1189 (1970). https://doi.org/10.1007/BF01897954
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DOI: https://doi.org/10.1007/BF01897954