Showing 121 - 140 results of 43,662 for search '(( significant changes cases ) OR ( significant ((we decrease) OR (nn decrease)) ))', query time: 0.79s Refine Results
  1. 121
  2. 122
  3. 123
  4. 124
  5. 125
  6. 126
  7. 127
  8. 128
  9. 129
  10. 130
  11. 131
  12. 132
  13. 133
  14. 134
  15. 135
  16. 136
  17. 137
  18. 138

    Oxidative Nickel-Catalyzed <i>ortho</i>-C–H Amination of (Iso)quinolines with Alicyclic Amines Directed by a Sacrificial <i>N</i>‑Oxide Group by Weiqi Zhu (17845973)

    Published 2024
    “…Transition metal (TM)-catalyzed direct amination of C–H bonds on free or fused pyridine (Py) rings with free amines still remains scarce because amines and the Py ring tend to adopt a nonproductive N-bound coordination with many TMs, leading to a significant decrease of catalytic reactivity. We herein disclose a nickel-catalyzed and a sacrificial <i>N</i>-oxide group directed oxidative coupling of (iso)quinolyl C–H bonds and alicyclic amines, which furnishes bioimportant amino(iso)quinolines efficiently and selectively in a single step. …”
  19. 139
  20. 140