Scalable Approach to Fluorinated Heterocycles with Sulfur Tetrafluoride (SF<sub>4</sub>)
作者:Serhii Trofymchuk、Maksym Bugera、Anton A. Klipkov、Volodymyr Ahunovych、Bohdan Razhyk、Sergey Semenov、Andrii Boretskyi、Karen Tarasenko、Pavel K. Mykhailiuk
DOI:10.1021/acs.joc.1c01518
日期:2021.9.3
A general approach to fluorinated (hetero)aromatic derivatives is elaborated. The key reaction is a deoxofluorination of substituted acetophenones with sulfur tetrafluoride (SF4). In contrast to previous deoxofluorination methods, this transformation is fast, scalable (up to 70 g), and high-yielding. More than 100 novel or previously hardly accessible fluorinated heterocycles, interesting for medicinal
Transition-metal-free C–H oxidative activation: persulfate-promoted selective benzylic mono- and difluorination
作者:Jing-jing Ma、Wen-bin Yi、Guo-ping Lu、Chun Cai
DOI:10.1039/c4ob02418d
日期:——
An operationally simple and selective method for the direct conversion of benzylic C–H to C–F to obtain mono- and difluoromethylated arenes using Selectfluor™ as a fluorine source is developed.
Process for the production of fluorinated organic compounds and fluorinating agents
申请人:——
公开号:US20030176747A1
公开(公告)日:2003-09-18
A process for the production of a fluorinated organic compound, characterized by fluorinating an organic compound having a hydrogen atoms using IF
5
; and a novel fluorination process for fluorinating an organic compound having a hydrogen atoms by using a fluorinating agent containing IF
5
and at least one member selected from the group consisting of acids, bases, salts and additives.
ONE POT SYNTHESIS OF 18F LABELEDTRIFLUOROMETHYLATED COMPOUNDS WITH DIFLUORO(IODO)METHANE
申请人:University of Oslo
公开号:US20150239796A1
公开(公告)日:2015-08-27
The present invention relates to compositions and methods for the synthesis of
18
F labeled compounds. In particular, the present invention relates to a copper (I) mediated one pot method for
18
F-trifluoromethylation of aromatic- or heteroaromatic halides with difluoro(iodo)methane (e.g., for use at PET imaging agents).
A new method for the formation of 1,1‐difluoroethyl copper species (“CuCF2CH3”) with 1,1‐difluoroethylsilane (TMSCF2CH3) has been developed. The “CuCF2CH3” species can be applied to the efficient 1,1‐difluoroethylation of diaryliodonium salts under mild conditions, affording (1,1‐difluoroethyl)arenes in good to excellent yields. This convenient procedure tolerates a wide range of functional groups