https://www.selleckchem.com/pr....oducts/BMS-790052.ht
Transition metal catalyzed dual C-H activation and annulation with alkynes was an attractive protocol to construct polycyclic π-extended structures. However, most of them were dominated by noble metal catalysts. Disclosed herein was the study of base-metal Ni-catalysis for dual C-H annulation of N-aromatic imidazole, which produced a range of desired polycyclic aza-quinolines in 48-95% yields. The use of bifunctional phosphine oxide ligand proved to be critical for success.Herein, we disclose a transition-metal-free reaction system t

https://mygind-north.mdwrite.n....et/learn-what-oak-el
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