[EN] PHOTOCHEMICAL PROCESS FOR THE FLUORINATION OF AN ORGANIC COMPOUND HAVING AN UNACTIVATED SP3 C-H BOND<br/>[FR] PROCÉDÉ PHOTOCHIMIQUE DE FLUORATION D'UN COMPOSÉ ORGANIQUE PRÉSENTANT UNE LIAISON C-H SP3 NON ACTIVÉE
申请人:ALECTOS THERAPEUTICS INC
公开号:WO2015000076A9
公开(公告)日:2015-08-06
[EN] PHOTOCHEMICAL PROCESS FOR THE FLUORTNATION OF AN ORGANIC COMPOUND HAVING AN UNACTIVATED SP3 C-H BOND<br/>[FR] PROCÉDÉ PHOTOCHIMIQUE DE FLUORATION D'UN COMPOSÉ ORGANIQUE PRÉSENTANT UNE LIAISON C-H SP3 NON ACTIVÉE
申请人:ALECTOS THERAPEUTICS INC
公开号:WO2015000076A1
公开(公告)日:2015-01-08
The application provides a photochemical process for the chemoselective fluorination of an organic compound by combining a carbon-containing compound having an unactivated sp3 C-H bond with a reagent system comprised of a fluorinating agent, and a photocatalyst, in the presence of a light source. Provided as fluorinating agent is N-fluorobenzenesulfonimide (NFSI) or 1-chloromethy1-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) (Selectfluor™), as photocatalyst is tetrabutylammonium decatungstate (TBADT), and as light source is a 365 nm UV lamp. The reactions conditions result in the C-H bond being replaced by a C-F bond, to provide a fluorinated carbon-containing compound.
A Convenient Photocatalytic Fluorination of Unactivated CH Bonds
作者:Shira D. Halperin、Hope Fan、Stanley Chang、Rainer E. Martin、Robert Britton
DOI:10.1002/anie.201400420
日期:2014.4.25
providing a means to block site‐selective metabolic degradation of drugs and access radiotracers for positron emission tomography imaging. Despite current sophistication in fluorination reagents and processes, the fluorination of unactivated CH bonds remains a significant challenge. Reported herein is a convenient and economic process for direct fluorination of unactivated CH bonds that exploits the