Scope of regioselective Suzuki reactions in the synthesis of arylpyridines and benzylpyridines and subsequent intramolecular cyclizations to azafluorenes and azafluorenones
作者:Joydev K. Laha、Ketul V. Patel、Saima Saima、Surabhi Pandey、Ganesh Solanke、Vanya Vashisht
DOI:10.1039/c8nj02734j
日期:——
current investigation on regioselective Suzuki reactions of 2,3-dihalopyridines and 2-halo-3-halomethylpyridines yielded the unexplored synthesis of arylpyridines and benzylpyridines bearing synthetic handles for further functionalization. Indeed, the scope of intramolecularcyclizations of arylpyridines and benzylpyridines prepared in this study for the synthesis of azafluorenes and azafluorenones has been
Practical Iron- and Cobalt-Catalyzed Cross-Coupling Reactions between N-Heterocyclic Halides and Aryl or Heteroaryl Magnesium Reagents
作者:Olesya M. Kuzmina、Andreas K. Steib、Sarah Fernandez、Willy Boudot、John T. Markiewicz、Paul Knochel
DOI:10.1002/chem.201500747
日期:2015.5.26
The reaction scope of iron‐ and cobalt‐catalyzed cross‐couplingreactions in the presence of isoquinoline (quinoline) in the solvent mixture tBuOMe/THF has been further investigated. Various 2‐halogenated pyridine, pyrimidine, and triazine derivatives were arylated under these mild conditions in excellent yields. The presence of isoquinoline allows us to perform Fe‐catalyzed cross‐coupling reactions