Synthesis of Densely Substituted Pyridines through 1,2-Oxazine-6-ones Inverse Electron Demand Diels-Alder Reaction

Dmitrii S. Ivanov,Alexander Yu. Smirnov,Elvira R. Zaitseva,Andrey A. Mikhaylov,Mikhail S. Baranov

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY（2024）

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摘要

Densely substituted pyridines are synthesized from available 1,2-oxazin-6-ones and enamines through tandem hetero-Diels-Alder and retro-Diels-Alder reaction in 45-98 % yield. A new simple method for synthesis of densely substituted pyridines from available 1,2-oxazin-6-ones and enamines through tandem hetero-Diels-Alder and retro-Diels-Alder reaction are presented.image

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