Fluorine-Substituted Arylphosphine for an NHC-Ni(I) System, Air-Stable in a Solid State but Catalytically Active in Solution

Molecules

Rion Hosokawa¹  Takahiro Inatomi¹  Kouki Matsubara¹  Yuji Yamada¹  Takahiro Fujii¹  Yuji Koga¹ 

[1] Department of Chemistry, Fukuoka University, 8-19-1 Nanakuma, Fukuoka 814-0180, Japan;

关键词: monovalent nickel;    fluorine-substituted phosphine;    Kumada coupling;    intermolecular interaction;    DFT calculations;   

DOI  :  10.3390/molecules24183222

来源: DOAJ

【 摘 要 】

Monovalent NHC-nickel complexes bearing triarylphosphine, in which fluorine is incorporated onto the aryl groups, have been synthesized. Tris(3,5-di(trifluoromethyl)-phenyl)phosphine efficiently gave a monovalent nickel bromide complex, whose structure was determined by X-ray diffraction analysis for the first time. In the solid state, the Ni(I) complex was less susceptible to oxidation in air than the triphenylphosphine complex, indicating greatly improved solid-state stability. In contrast, the Ni(I) complex in solution can easily liberate the phosphine, high catalytic activity toward the Kumada−Tamao−Corriu coupling of aryl bromides.

【 授权许可】

Unknown