Perfluoroalkylation of Thiosulfonates: Synthesis of Perfluoroalkyl Sulfides
作者:Ziwei Luo、Xinkan Yang、Gavin Chit Tsui
DOI:10.1021/acs.orglett.0c02235
日期:2020.8.7
A practical synthesis of perfluoroalkyl sulfides is described. The method employs stable and readily accessible thiosulfonates as new electrophiles with commercial nucleophilic perfluoroalkylating reagents. The mild reaction conditions allow access to a wide variety of both aryl- and alkyl-substituted perfluoroalkyl sulfides amenable to pharmaceutical development. Furthermore, the reaction operation
reagents (trifluoromethyl)(4-nitrophenyl)bis(carbomethoxy)methylide (1g) and (trifluoromethyl)(3-chlorophenyl)bis(carbomethoxy)methylide (1j) through structure-activity study was described. Under mild conditions, reagent 1g reacted with β-ketoesters and silyl enol ethers to give α-trifluoromethylated-β-ketoesters or α-trifluoromethylated ketones in high yields. In addition, reagent 1g could serve as
A mild and fast photocatalytic trifluoromethylation of thiols in batch and continuous-flow
作者:Natan J. W. Straathof、Bart J. P. Tegelbeckers、Volker Hessel、Xiao Wang、Timothy Noël
DOI:10.1039/c4sc01982b
日期:——
the development of a mild and fast photocatalytic trifluoromethylation of thiols. The combination of commercially available Ru(bpy)3Cl2, visible light and inexpensive CF3I gas proved to be an efficient method for the direct trifluoromethylation of thiols. The protocol is demonstrated on a wide range of aromatic, hetero-aromatic and aliphatic substrates in both batch and continuous microflow (32 examples
Gold (I/III)‐Catalyzed Trifluoromethylthiolation and Trifluoromethylselenolation of Organohalides
作者:Sagar R. Mudshinge、Yuhao Yang、Bo Xu、Gerald B. Hammond、Zhichao Lu
DOI:10.1002/anie.202115687
日期:2022.3.14
The first gold(I/III)-catalyzed direct trifluoromethylthiolation and trifluoromethylselenolation of organohalides are reported. This mild and efficient protocol enjoys a broad substrate scope and high yield (>60 examples with up to 97 % isolated yield). Its robustness was demonstrated by the late-stage functionalization of various bioactive molecules, which makes this reaction applicable to pharmaceutical
Metal-free trifluoromethylthiolation of arenediazonium salts with Me4NSCF3
作者:Giulia Bertoli、Benjamin Exner、Mathies V. Evers、Kristina Tschulik、Lukas J. Gooßen
DOI:10.1016/j.jfluchem.2018.03.011
日期:2018.6
A metal-free entry to the pharmaceutically meaningful substrate class of trifluoromethyl thioethers has been developed starting from widely available arenediazoniumsalts and commercially available Me4N+SCF3−. This reaction proceeds within one hour at 0 °C and is applicable to a wide range of functionalized substrates.