Synthesis of Tetrahydro- and Dihydropyri
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Lutz F. Tietze; Ansgar Schuffenhauer
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Article
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1998
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John Wiley and Sons
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English
⚖ 414 KB
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Intermolecular hetero Diels-Alder reactions of the treatment with acetyl chloride or dimethyl sulfate. According to this procedure, 21 gives either N-acetyltetrahydropyridine enantiopure sulfinimine 11 with the enol ethers 12-16 at 20 °C and 11 kbar lead to the tetrahydropyridines 18-22 in high 29 o