A new photocatalyst–enzyme coupled artificialphotosynthesis system was constructed for photoenzymatic reduction of CO2 using COFs as enzyme carriers. The hybrid system showed an apparent quantum yield as high as 9.17±0.44 %, surpassing the reported NADH-regenerated photocatalysts of crystalline framework materials.
Enhanced Energy Transfer in A π‐Conjugated Covalent Organic Framework Facilitates Excited‐State Nickel Catalysis
作者:Yingjie Fan、Dong Won Kang、Steven Labalme、Jinhong Li、Wenbin Lin
DOI:10.1002/anie.202218908
日期:2023.3.6
This work describes excited-state nickel-catalyzed borylation and trifluoromethylation reactions in a covalent organic framework (COF). Rapid energy transfer in the sp2-carbon conjugated COF facilitates the generation of aryl radicals from nickel-aryl complexes, leading to two orders of magnitude higher catalytic efficiency than the homogeneous counterpart in aryl borylation and trifluoromethylation
Reductive Couplings of 2-Halopyridines without External Ligand: Phosphine-Free Nickel-Catalyzed Synthesis of Symmetrical and Unsymmetrical 2,2′-Bipyridines
作者:Lian-Yan Liao、Xing-Rui Kong、Xin-Fang Duan
DOI:10.1021/jo402084m
日期:2014.1.17
An unexpectedly facile synthetic approach for symmetrical and unsymmetrical 2,2'-bipyridines through the Ni-catalyzed reductive couplings of 2-halopyridines was developed. The couplings were efficiently catalyzed by 5 mol % of NiCl2 center dot 6H(2)O without the use of external ligands. A variety of 2,2'-bipyridines including caerulomycin F have been efficiently synthesized.
Lindner, Ekkehard; Veigel, Robert; Ortner, Kirstin, European Journal of Inorganic Chemistry, 2000, # 5, p. 959 - 969