يعرض 141 - 160 نتائج من 108,431 نتيجة بحث عن '(( significant risks based ) OR ( significant ((nn decrease) OR (a decrease)) ))', وقت الاستعلام: 1.36s تنقيح النتائج
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    Oxidative Nickel-Catalyzed <i>ortho</i>-C–H Amination of (Iso)quinolines with Alicyclic Amines Directed by a Sacrificial <i>N</i>‑Oxide Group حسب Weiqi Zhu (17845973)

    منشور في 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. …"
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