α-Fluorination of carbonyls with nucleophilic fluorine
作者:Pauline Adler、Christopher J. Teskey、Daniel Kaiser、Marion Holy、Harald H. Sitte、Nuno Maulide
DOI:10.1038/s41557-019-0215-z
日期:2019.4
unique properties of fluorine, and the ability of fluorination to change the properties of organic molecules, there is significant interest from medicinal chemists in innovative methodologies that enable the synthesis of new fluorinated motifs. State-of-the-art syntheses of α-fluorinated carbonyl compounds invariably rely on electrophilic fluorinating agents, which can be strongly oxidizing and difficult
A cobaloxime-catalyzed photochemical synthesis of allyl monofluorides from styrenes is described herein. This method is characterized by mild reaction conditions, low-cost catalyst, and broad substrate scope. Furthermore, this convenient method will provide a facilesynthesis toward novel monofluoroalkylated natural product and pharmaceutical derivatives. Mechanistic investigations indicate that a
A diastereoselective Mannich-type reaction of α-fluorinated carboxylate esters: synthesis of β-amino acids containing α-quaternary fluorinated carbon centers
作者:Xiang Li、Ya Li、Huaqi Shang
DOI:10.1039/c6ob01084a
日期:——
We report a diastereoselective Mannich-type reaction of α-alkyl, α-aryl, and α-vinyl fluoroacetates with N-tert-butylsulfinyl imines. This method provides a powerful means to access a broad range of highly functionalized β-amino acids containing α-fluorinated quaternarystereogenic carbon centers. We also show that the stereochemical outcome of the present reaction is highly dependent on the steric
Palladium catalysts are found to selectively hydrogenate fluoroolefins without hydrogenolyticcleavage of the carbon-fluorine bond Since a large number of methods are available for the preparation of unsaturated organofluoro compounds this constitutes a general synthetic route to sp3-fluorinated molecules.