Abstract
Oxidation of 4-phenyl-, 4-(4-pyridyl)-, and 4-phenethenyl-1,2,3,6-tetrahydropyridines with potassium permanganate can stop at the stage of the introduction of an oxo group into the allyl C(2) position of the piperideine fragment. In contrast to their precursors, 4-aryltetrahydropyridin-2-ones obtained in this way can be converted to 3,4-dihydroxy-2-oxopiperidines under Wagner reaction conditions.
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Soldatenkov, A.T., Temesgen, A.V., Bekro, I.A. et al. Oxidative Reactions of Azines. 6. Lactamization of 4-Aryl- and 4-Phenethenyl-substituted 1,2,3,6-Tetrahydropyridines and Dihydroxylation of 4-Aryl-1,2,5,6-tetrahydropyrid-2-ones Using Potassium Permanganate. Chemistry of Heterocyclic Compounds 36, 1426–1430 (2000). https://doi.org/10.1023/A:1017570313032
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DOI: https://doi.org/10.1023/A:1017570313032