Oxidative Reactions of Azines. 11. The Influence of Manganese Dioxide on the Reaction of Tetrahydropyridines with Formaldehyde: Synthesis and Molecular …
AT Soldatenkov, KB Polyanskii, AV Temesgen…
Index: Soldatenkov; Polyanskii; Temesgen; Sergeeva; Vysotskaya; Averkiev; Antipin; Lobanov Chemistry of Heterocyclic Compounds, 2004 , vol. 40, # 5 p. 641 - 649
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Abstract
Abstract New derivatives of piperidino [4, 5-d] dioxane and 3-oxa-7-bicyclo [3.3. 1] nonane were obtained by the oxidatively catalysed condensation of 4-aryl-1, 2, 3, 6- tetrahydropyridines with formaldehyde. The direction of this reaction is sharply altered in the presence of manganese dioxide to give 6-oxa-2-azabicylo [3.2. 1] octan-4-one—the product of the oxidative condensation of a new type.
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