Cu-Catalyzed iminative hydroolefination of unactivated alkynes en route to 4-imino-tetrahydropyridines and 4-aminopyridines
作者： Ravi Kumar , Shridhar H. Thorat , Maddi Sridhar Reddy
DOI: 10.1039/C6CC08081B
关键词:
摘要: A general method for synthesizing 4-imino tetrahydropyridine derivatives is achieved, from readily available β-enaminones and sulfonyl azides, which comprises a sequential copper catalyzed ketenimine formation its hitherto inaccessible intramolecular hydrovinylation. The products are shown as ready precursors highly valuable 4-sulfonamidopyridine via DDQ mediated oxidation.
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