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
Produktkennzeichnungen
ISBN-10
1475704313
ISBN-13
9781475704310
eBay Product ID (ePID)
165392679
Produkt Hauptmerkmale
Sprache
Englisch
Anzahl der Seiten
132 Seiten
Verlag
Springer Us
Publikationsname
Birch Reduction of Aromatic Compounds
Autor
A. A. Akhrem
Format
Taschenbuch
Erscheinungsjahr
2012
Zusätzliche Produkteigenschaften
Hörbuch
No
Inhaltsbeschreibung
Paperback
Item Length
22cm
Item Height
7mm
Item Width
15cm
Item Weight
203g
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