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应用化学

银虫 (小有名气)

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In a study of the reactions of methylenemalononitriles, 1-ethoxyethylidenemalononitrile (Ⅰ) was found to react  with hydrogen  sulfide to give different products depending on the solvent  used. When benzene was the solvent, 2-cyano-3-ethoxythiocrotonamide (Ⅱ) was the product.  When ethyl alcohol was the solvent, 2-cyanothioacetamide (Ⅲ) was the product. This paper concerns the determination of the chemistry involved in the formation of Ⅱ and Ⅲ and a study of  the reactions of Ⅱ and other 2-cyano-3- ethoxy-2-alkenthioamides.
The structural assignment of Ⅱwas supported by spectral data and was confirmed by the identification of the compound as the product obtained by synthesis from triethyl orthoacetate and  2- cyanot hioacetamide.
The structural assignment of  Ⅲ was supported by spectral data and was confirmed by the identification of the compound as the product obtained by synthesis from malononitrile and hydrogen sulfide.[2]

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liubencai

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应用化学(金币+15,VIP+0):谢谢,请大侠也帮忙翻译一下我另外的求助哦,有金币 5-17 18:08
在研究亚甲基丙二腈的反应中,发现1-乙氧基亚乙基丙二腈(Ⅰ) 同硫化氢反应得到不同的产物, 这决定于使用的溶剂。当溶剂为苯时, 产物是2-氰基-3-乙氧基硫代丁烯酰胺(Ⅱ)。当溶剂是乙醇时, 产物是2-氰基硫代乙酰胺(Ⅲ)。本论文关注在Ⅱ和Ⅲ形成过程中化学上的测定和研究Ⅱ和其它的2-氰基-3-乙氧基-2-烯硫代酰胺的反应。
  Ⅱ结构的指定得到由光谱数据的支持,确认结构是通过原乙酸三乙酯和2-氰基-硫代乙酰胺合成得到的化合物。
  Ⅲ结构的指定得到由光谱数据的支持,确认结构是通过合成丙二腈和硫化氢合成得到的化合物。[2]

[ Last edited by liubencai on 2009-5-17 at 20:49 ]
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应用化学

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