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c*********o 发帖数: 39 | 1 问大家一个问题,cyclohexane 是哪一年发现的,我知道的是In 1894 by Baeyer ,
希望得到大家的求证,谢谢!
另,benzene是1825年by Faraday? | s*******h 发帖数: 3731 | | c*********o 发帖数: 39 | 3 网上查了一下,In 1870 Adolf von Baeyer repeated the reaction and pronounced
the same reaction product hexahydrobenzene。
In 1894 Baeyer synthesized cyclohexane starting with a Dieckmann
condensation of pimelic acid followed by multiple reductions。
Surprisingly their cyclohexanes boiled higher by 10°C than either
hexahydrobenzene or hexanaphtene but this riddle was solved in 1895 by
Markovnikov, N.M. Kishner and Nikolay Zelinsky when they re-diagnosed
hexahydrobenzene and hexanaphtene as methylcyclopentane, the result of an
unexpected rearrangement reaction.
所以在1870年baeyer发现的应该是 methylcyclopentane。 |
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