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应用化学

银虫 (小有名气)

[交流] 求英文翻译一段

A solid S-methyl derivative (methyl 2-cyano-3- hydroxythiocrotonimidate) of the enol structure of Ⅳ was obtained by treating Ⅱwith methyl iodide in 4% sodium hydroxide  solution. The ethyl group of Ⅱ was lost during this alkylation reaction.
      Upon mild oxidation of Ⅸwith iodine in potassium iodide, a disulfide, which was  characterized as 3,3'-dithiobis [2- (l-hydroxyethylidene)-3-imino propionitrile](ⅩⅣ), was formed.  It was surprising to find that if Ⅱ was mildly oxidized in the same manner with iodine in potassium iodide the ethyl group was lost and the same product was formed. The absence of  hydrogen iodide salt formation was demonstrated by a negative halogen analysis.

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pharmjackie

木虫 (正式写手)

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应用化学(金币+6,VIP+0):十分感谢 5-23 17:47
用碘甲烷于4%氢氧化钠溶液中与II反应得到具有烯醇结构化合物IV的固态的S-甲基衍生物,在烷基化过程中II的乙基被反应掉。将IX用碘/碘化钾温和地氧化得到二硫化物(XIV,即3,3‘-二硫-双[2-(1-羟乙叉基)-3-亚胺基丙腈。让人惊奇的是如果II用同样的方式温和地用碘/碘化钾氧化乙基也失去并得到同样的产物。卤素分析负反应表明没有氢碘酸盐的生成。
3楼2009-05-23 17:03:14
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