期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 72, 期 15, 页码 5923-5926出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo070680p
关键词
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Reaction of 2-substituted dienamides with catalytic amounts of copper halide/tripyridylamine (TPA) furnishes either 5-exo or 6-endo products with the outcome dependent upon the radical initiating unit. Reaction of 3-substituted dienamides produces beta-lactams via a 4-exo cyclization with termination of the reaction occurring via either halogen atom transfer, trapping with oxygen, elimination, or radical-radical coupling depending upon the diene.
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