Selective CF Bond Activation of Tetrafluorobenzenes by Nickel(0) with a Nitrogen Donor Analogous to N-Heterocyclic Carbenes
作者:Meghan E. Doster、Samuel A. Johnson
DOI:10.1002/anie.200806048
日期:2009.3.9
N, not NHC: A neutral, basic, strong σ‐donor nitrogen ancillary ligand with properties analogous to those of N‐heterocyclic carbenes (NHCs) was developed to aid in the oxidative additions of challenging substrates to late transition metals. Selective, room‐temperature CF bond activation was observed with hexa‐, penta‐, and all three isomers of tetrafluorobenzene using a nickel(0) source in the presence
N,而不是NHC:开发了一种中性,碱性,强σ-供体氮辅助配体,其性质与N-杂环卡宾(NHC)相似,可帮助将具有挑战性的底物氧化添加到后期过渡金属中。在存在该供体的情况下,使用镍(0)源观察到了六氟,五氟和四氟苯的所有三个异构体的选择性室温CF键活化。