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Titlebook: Birch Reduction of Aromatic Compounds; A. A. Akhrem,I. G. Reshetova,Yu. A. Titov Book 1972 Springer Science+Business Media New York 1972 a

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發(fā)表于 2025-3-21 17:48:35 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
期刊全稱Birch Reduction of Aromatic Compounds
影響因子2023A. A. Akhrem,I. G. Reshetova,Yu. A. Titov
視頻videohttp://file.papertrans.cn/189/188842/188842.mp4
圖書封面Titlebook: Birch Reduction of Aromatic Compounds;  A. A. Akhrem,I. G. Reshetova,Yu. A. Titov Book 1972 Springer Science+Business Media New York 1972 a
影響因子Birch reduction (see reviews [1-5]) is the name given to the reaction of unsaturated organic compounds with alkali metals and alcohols in liquid am- monia. This method was first used for aromatic compounds in 1937 by Wooster [6J, who showed that benzene and its derivatives are reduced by sodium in liq- uid ammonia in the presence of an alcohol, while this reaction does not take place in the absence of an alcohol. However, the general recognition and broad application of this reaction was achieved only after a series of investigations by Birch published from 1944 onwards [7J. Since the presence of an alcohol in the reaction medium is not indispen- sable for pOlycyclic aromatic systems, the present review includes only deriv- atives of the simplest aromatic compounds - benzene and naphthalene. 1 Reaction Mechanism The most probable mechanism of Birch reduction, adopted by the major- ity of workers in this field [4, 8 -12] can be represented by the following stages: ‘v I NH -‘" ,. - i T 1 3 +--"‘( a) , , ,e (NHa) NH 3) + ROH ----+ () ll. . (NHa) A H H 4) H H 5) ‘)‘, ",,\+ + RO" ~ Q + 110M,,,,,, / (NHa) . (NH:,) Q H H Ii Ij H H H H H+ X/~H M,l
Pindex Book 1972
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沙發(fā)
發(fā)表于 2025-3-21 21:54:33 | 只看該作者
978-1-4757-0431-0Springer Science+Business Media New York 1972
板凳
發(fā)表于 2025-3-22 01:14:37 | 只看該作者
Toxische Inhaltsstoffe in Lebensmitteln,stituents. In the first stage of the reaction, 1,4-dihydro derivatives are always formed and through the further reactions of these are effected transformations to various compounds frequently difficult of access by other methods of synthesis.
地板
發(fā)表于 2025-3-22 04:54:51 | 只看該作者
Lehrbuch Lebensmittelchemie und Ern?hrungf addition of the reagents — the alkali metal, the ammonia, and the alcohol — and also by the presence or absence of supplementary solvents. Since the reaction is carried out in liquid ammonia, its temperature range is determined by the boiling and solidification points of ammonia (from -34°C to -80°C).
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Lehrbuch Lebensmittelchemie und Ern?hrungf addition of the reagents — the alkali metal, the ammonia, and the alcohol — and also by the presence or absence of supplementary solvents. Since the reaction is carried out in liquid ammonia, its temperature range is determined by the boiling and solidification points of ammonia (from -34°C to -80
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