TY - JOUR T1 - Cu-Catalyzed iminative hydroolefination of unactivated alkynes en route to 4-imino-tetrahydropyridines and 4-aminopyridines JF - Chemical Communications Y1 - 2016 A1 - Kumar, Ravi A1 - Thorat, Shridhar H. A1 - Reddy, Maddi Sridhar AB - A general method for synthesizing 4-imino tetrahydropyridine derivatives is achieved, from readily available beta-enaminones and sulfonyl azides, which comprises a sequential copper catalyzed ketenimine formation and its hitherto inaccessible intramolecular hydrovinylation. The products are shown as ready precursors for highly valuable 4-sulfonamidopyridine derivatives via DDQ mediated oxidation. VL - 52 IS - 92 U3 - Foreign U4 - 6.567 ER -