Amino- and hydrodefluorination of polyfluoroaromatic amines with aqueous ammonia in a steel autoclave. Synthesis of highly pure tetrafluorophenylenediamines Научная публикация
| Журнал |
Russian Chemical Bulletin
ISSN: 1066-5285 , E-ISSN: 1573-9171 |
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| Вых. Данные | Год: 2009, Том: 58, Номер: 4, Страницы: 823-827 Страниц : DOI: 10.1007/s11172-009-0101-8 | ||||
| Ключевые слова | polyfluoroarenes; hexafluorobenzene; amines; ammonia; aminodefluorination; nucleophilic substitution; hydrodefluorination; organofluorine compounds | ||||
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Реферат:
The action of aqueous ammonia on hexafluorobenzene in a steel autoclave at 180-220 A degrees C yields a mixture of isomeric tetrafluorophenylenediamines and 2,4,5-trifluorophenylene-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 A degrees 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.
Библиографическая ссылка:
Kusov S.Z.
, Rodionov V.I.
, Vaganova T.A.
, Shundrina I.K.
, Malykhin E.V.
Amino- and hydrodefluorination of polyfluoroaromatic amines with aqueous ammonia in a steel autoclave. Synthesis of highly pure tetrafluorophenylenediamines
Russian Chemical Bulletin. 2009. V.58. N4. P.823-827. DOI: 10.1007/s11172-009-0101-8 WOS Scopus РИНЦ OpenAlex
Amino- and hydrodefluorination of polyfluoroaromatic amines with aqueous ammonia in a steel autoclave. Synthesis of highly pure tetrafluorophenylenediamines
Russian Chemical Bulletin. 2009. V.58. N4. P.823-827. DOI: 10.1007/s11172-009-0101-8 WOS Scopus РИНЦ OpenAlex
Даты:
| Опубликована в печати: | 1 апр. 2009 г. |
| Опубликована online: | 18 апр. 2010 г. |
Идентификаторы БД:
| Web of science: | WOS:000276774300026 |
| Scopus: | 2-s2.0-77953553526 |
| РИНЦ: | 15300992 |
| OpenAlex: | W2084753000 |