Iodine (or related species) addition to 1,4-dihydropyridinls, with properly attached substituents at the nitrogen atom, leads to the corresponding 3-iodotetrahydlopyridinium ions, which undergo an internal nucleophilic attack to furnish regio- and stereoselectively iodobi(poly)heterocyclic ring systems in good yields. (C) 1998 Elsevier Science Ltd. All rights reserved.
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650504, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650504, Peoples R China
Lu, Lingling
Xu, Hui
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Xu, Hui
Zhou, Pan
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Zhou, Pan
Yu, Fuchao
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