176722-64-8Relevant articles and documents
Nucleophilic trifluoromethylation of azinium salts with Zn(CF3)2·bpy
Pan, Shitao,Wang, Xiu,Ni, Chuanfa,Hu, Jinbo
, (2021/10/12)
(Trifluoromethyl)zinc complexes have been widely used in metal-mediated trifluoromethylation reactions. However, direct nucleophilic addition with a (trifluoromethyl)zinc complex is rare. In this article, we describe an unprecedented trifluoromethylation of azinium salts using Zn(CF3)2·bpy as CF3 source, giving 1-(4-methoxybenzyl)-2-(trifluoromethyl)-1,2-dihydroquinolines as products. The latter species were further transformed to 2-trifluoromethylquinolines under oxidative conditions. This work also shows that ligands play an important role in tuning the reactivity of (trifluoromethyl)zinc complexes.
2-Position-Selective C-H Perfluoroalkylation of Quinoline Derivatives
Shirai, Takahiro,Kanai, Motomu,Kuninobu, Yoichiro
supporting information, p. 1593 - 1596 (2018/03/23)
We developed 2-position-selective, direct C-H trifluoromethylation, pentafluoroethylation, and heptafluoropropylation of quinoline derivatives. Regioselective transformation was achieved without derivatization of the quinolines. The reaction proceeded at room temperature with high functional group tolerance, even in gram scale. Notably, the reaction was applicable to substrates containing a functional group sensitive to oxidation and a drug molecule.