Reactivity of alkali and alkaline earth metal tetrafluorobromates towards aromatic compounds and pyridine
| Parent link: | Journal of Fluorine Chemistry Vol. 192, pt. A.— 2016.— [P. 120-123] |
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| Nhiều tác giả của công ty: | , |
| Tác giả khác: | , , , , |
| Tóm tắt: | Title screen The bromination activity of tetrafluorobromates of alkali and alkali-earth metals increases in the order KBrF4, CsBrF4, RbBrF4 and Ba(BrF4)2. The most active tetrafluorobromate-Ba(BrF4)2 is able to selectively brominate the deactivated aromatic compounds nitrobenzene and 4-nitrotoluene, but not the activated compounds benzene and toluene. In all cases bromination of methyl groups of methylbenzenes does not occur. Ba(BrF4)2 forms the known complex C6H5N·BrF3 when reacted with pyridine. Due to dilution by inert BaF2, this pyridine-based complex is air stable and can be considered as safer and more convenient reagent in comparison with the original fluorobromates; it can selectively brominate benzene and toluene in contrast with tetrafluorobromates. Режим доступа: по договору с организацией-держателем ресурса |
| Được phát hành: |
2016
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| Những chủ đề: | |
| Truy cập trực tuyến: | https://doi.org/10.1016/j.jfluchem.2016.10.022 |
| Định dạng: | Điện tử Chương của sách |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=656056 |
| Tóm tắt: | Title screen The bromination activity of tetrafluorobromates of alkali and alkali-earth metals increases in the order KBrF4, CsBrF4, RbBrF4 and Ba(BrF4)2. The most active tetrafluorobromate-Ba(BrF4)2 is able to selectively brominate the deactivated aromatic compounds nitrobenzene and 4-nitrotoluene, but not the activated compounds benzene and toluene. In all cases bromination of methyl groups of methylbenzenes does not occur. Ba(BrF4)2 forms the known complex C6H5N·BrF3 when reacted with pyridine. Due to dilution by inert BaF2, this pyridine-based complex is air stable and can be considered as safer and more convenient reagent in comparison with the original fluorobromates; it can selectively brominate benzene and toluene in contrast with tetrafluorobromates. Режим доступа: по договору с организацией-держателем ресурса |
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| DOI: | 10.1016/j.jfluchem.2016.10.022 |