4218-94-4Relevant academic research and scientific papers
Selective mono- and diamination of some polyhalogenbenzenes in anhydrous ammonia
Rodionov, Vladimir I.,Vaganova, Tamara A.,Malykhin, Evgenij V.
, p. 98 - 102 (2015/09/28)
Aminodefluorination of polyhalogenbenzenes (chloropentafluoro-, 1,3-dichlorotetrafluoro-, sym-trichlorotrifluoro-, 1,2,3,5-tetrafluoro- and 1,2,4,5-tetrafluoro-3-trifluoromethylbezenes) in anhydrous ammonia was investigated. The optimal conditions for sel
New fluorinated 1,2-diaminoarenes, quinoxalines, 2,1,3-arenothia(selena) diazoles and related compounds
Makarov, Arkady G.,Selikhova, Natalia Yu.,Makarov, Alexander Yu.,Malkov, Victor S.,Bagryanskaya, Irina Yu.,Gatilov, Yuri V.,Knyazev, Alexey S.,Slizhov, Yuri G.,Zibarev, Andrey V.
, p. 123 - 131 (2014/08/18)
5,6,7,8-Tetrafluoroquinoxaline (1) and its previously unknown derivatives (2-8) were synthesized from glyoxal and polyfluorinated 1,2-diaminoarenes (10-17) obtained by reduction of corresponding 2,1,3-arenothiadiazoles (including new ones 21 and 22). The
Catalytic and noncatalytic ammonolysis of chloropentafluorobenzene
Selivanova,Pokrovskii,Shteingarts
, p. 404 - 409 (2007/10/03)
Ammonolysis of chloropentafluorobenzene both in the presence and in the absence of copper(I) salt results mainly in replacement of the para-and ortho-fluorine atoms with respect to chlorine rather than replacement of the chlorine atom. Ammonolysis of 4-chloro-2,3,5,6-tetrafluoroaniline and 2-chloro-3,4,5,6-tetrafluoroaniline in the absence of copper(I) salt yields exclusively the corresponding fluorine substitution products, whereas in the presence of copper(I) salt the chlorine atom is replaced. Successive ammonolysis of chloropentafluorobenzene in the presence of copper catalyst along these two paths was put into the basis of a new method for preparation of 2,3,5,6-tetrafluoro-1,4-phenylenediamine. * This study was financially supported by the Russian Foundation for Basic Research (project no. 99-03-33111), by the Ministry of Science and Technology of the Russian Federation (project no 9.3.01), and by the Ministry of Education of the Russian Federation (project no. 015.05.01.13).
