700-17-4Relevant articles and documents
Catalyst-Free Hydrodefluorination of Perfluoroarenes with NaBH4
Schoch, Timothy D.,Mondal, Mukulesh,Weaver, Jimmie D.
, p. 1588 - 1593 (2021/03/03)
Presented is an economical means of removing fluorine from various highly fluorinated arenes using NaBH4. The procedure was adapted for different classes of perfluoroarenes. A novel isomer of an emerging class of organic dyes based on the carbazole phthalonitrile motif was succinctly synthesized in two steps from tetrafluorophthalonitrile, demonstrating the utility of the hydrodefluorination procedure. Initial exploration of the dye shows it to be photoactive and capable of facilitating contrathermodynamic styrenoid E/Z isomerization.
Preparation method of polyfluoroaniline
-
, (2018/08/03)
The invention relates to a preparation method of polyfluoroaniline, according to the method, the polyfluoroaniline is prepared by a two-step common reaction from polyfluorobenzene as a raw material, the method has the characteristics of low reaction temperature, small pressure, low cost, and the like, is suitable for industrial production application, and is convenient for large-scale production;the polyfluoroaniline product obtained by the method has less impurities and high product purity.
Amino- and hydrodefluorination of polyfluoroaromatic amines with aqueous ammonia in a steel autoclave. Synthesis of highly pure tetrafluorophenylenediamines
Kusov,Rodionov,Vaganova,Shundrina,Malykhin
, p. 823 - 827 (2010/08/08)
The action of aqueous ammonia on liexafhiorobenzene in a steel autoclave at 180-220 °C yields a mixture of isomeric tet rafluorophenylenediamines and 2,4,5-trifhioroplienylene-1,3-diamine. The content of the hydrodefluorination product significantly depends on the reaction temperature and time. Tetrafluorophenylene-1,3-diamine undergoes hydrodefluorination with aqueous ammonia in a steel autoclave at 200 °C to give 2,4,5-trifluorophenylene-1,3- diamine; when the additives of NH4F and/or FeCl3 are present, 2,5-difluorophenylene-1,3-diamine is additionally formed. The hydrodefluorination products are not formed during bis-aminodefluorination of hexafluorobenzene with aqueous ammonia in a glass reactor or with anhydrous ammonia (in a mixture with aprotic solvent) in a steel autoclave.