463-11-6Relevant articles and documents
Halogen-Exchange Fluorination of Primary Alkyl Halides Using 1B Metal Fluorides-Pyridine Derivatives
Yoneda, Norihiko,Fukuhara, Tsuyoshi,Yamagishi, Ken,Suzuki, Akira
, p. 1675 - 1678 (1987)
Deep purplish red semicrystalline precipitates were obtained by the treatment of Cu2O with HF.After calcination at 100 deg C or higher temperature, this compound was successfully used as a highly effective halogen-exchange fluorination reagent for primary alkyl halides in the presence of pyridine derivatives.AgF and a mixture of CuF2 with copper powder also exhibited high activity in the reaction.
METHOD AND REAGENT FOR DEOXYFLUORINATION
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Paragraph 0148-0150; 0152; 0167, (2021/05/29)
A safe, simple, and selective method and reagent for deoxyfluorination is disclosed. With the method and reagent disclosed herein, organic compounds such as carboxylic acids, carboxylates, carboxylic acid anhydrides, aldehydes, and alcohols can be fluorinated by using the most common nucleophilic fluorinating reagents and electron deficient fluoroarenes as mediators under mild conditions, giving corresponding fluoroorganic compounds in excellent yield with a wide range of functional group compatibility and easy product purification. For example, directly utilizing KF for deoxyfluorination of carboxylic acids provides the most economical and the safest pathway to access acyl fluorides, key intermediates for syntheses of peptide, amide, ester, and dry fluoride salts.
A Series of Deoxyfluorination Reagents Featuring OCF2Functional Groups
Cao, Wei,Chen, Qing-Yun,Guo, Yong,Su, Zhaoben,Wu, Chengying,Zhao, Shiyu
supporting information, (2020/11/03)
Research on perfluoroalkyl ether carboxylic acids (PFECAs) as alternatives for perfluoroalkyl substances continues with the goal of protecting the environment. However, very little is known about the utilization of decomposition products of PFECAs. We report herein a new series of deoxyfluorination reagents featuring OCF2 functional groups derived from certain PFECAs. Alkyl fluorides were generated from various alcohols in ≤97% yield by these novel reagents. The mechanistic experiment verified in situ generation of carbonic difluoride (COF2).
Photochemical activation of SF6 by N-heterocyclic carbenes to provide a deoxyfluorinating reagent
Tomar, Pooja,Braun, Thomas,Kemnitz, Erhard
supporting information, p. 9753 - 9756 (2018/09/10)
The activation of the greenhouse gas SF6 using electron-rich N-heterocyclic carbenes gave 2,2-difluoroimidazolines or 2,2-difluoroimidazolidines as well as 2-thio derivatives of the carbene precursors. The N-heterocyclic carbenes can also convert SF4 to give similar products. The difluoroimidazolidine derivatives were applied in deoxyfluorination reactions. Furthermore, the activation of SF6 and the fluorination can be coupled in a one-pot process to convert 1-octanol into 1-fluorooctane.