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

極少

修飾語(yǔ)

Introduction,ia. This method was first used for aromatic compounds in 1937 by Wooster [6], who showed that benzene and its derivatives are reduced by sodium in liquid 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

defenses

執(zhí)拗

Methods and Examples of the Performance of the Reaction,f 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

割讓

財(cái)產(chǎn)

Leisureliness

離開(kāi)真充足

colloquial

Feminist and Queer Pedagogies in , and ,cisions that we make. Mentoring thus plays a significant role in the lives of students. . (1969) and . (2000) are films about such mentors who are extraordinarily courageous, influential, and also controversial, challenging conventional ideas about gender, sexuality, education, and other troubling i

crutch