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北京石油化工学院2026年研究生招生接收调剂公告
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[求助] 论文翻译求助

1.The aliphatic p-methoxyphenylimines were prepared in nearly quantitative yields by stirring for 2 h a solution in CH2Cl2of the corresponding aldehyde (10 mmol, 1.0 equiv) with p-anisidine (10 mmol, 1.0 equiv) in the presence of MgSO4(2 g).

2.The p-methoxyphenylimines were prepared in nearly quantitative yields by stirring for 2 h a solution in CH2Cl2 of the corresponding aldehyde (10 mmol, 1.0 equiv) with p-anisidine (10 mmol, 1.0 equiv) in the presence of molecular sieves, at room temperature, for 16 h under inert atmosphere. Imines 10were obtained as brown oils, which were utilised without further purification.

3.A mixture of cyclohexanecarboxaldehyde (1.23 g,10 mmol), 4-methoxyaniline (1.23 g, 10 mmol) and magnesium sulfate (2.41 g) in chloroform (10 mL) was stirred at rt for 2 h. Filtration through a pad of potassium carbonate followed by concentration gave 2c
   
1和2是一个文章上的两段   麻烦大家帮忙翻译和解释一下,特别是第二段我不是很理解他的意思,还有这个物质的提纯方法是什么呢?
2是另外一篇文章上的,Filtration through a pad of potassium carbonate followed by concentration gave 2c。这段要怎么理解呢?他所说的方法是什么呢?
      麻烦大家啦!非常感谢!

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panpan11120

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真强必胜: 金币+3, 给个红包,谢谢回帖 2013-12-04 15:23:57
诺遥(RXMCDM代发): 金币+5, 多谢应助! 2014-01-18 00:05:29
1.以定量的收率制备脂肪族对甲氧基苯亚胺:条件如下---溶剂为二氯甲烷,硫酸镁作为除水剂(2g),对应的醛(10 mmol,1当量)和对甲氧基苯胺(10 mmol,1当量)混合搅拌2h。
2.制备对甲氧基苯亚胺:条件如下---二氯甲烷作为溶剂,对应的醛(10 mmol,1当量)和对甲氧基苯胺(10 mmol,1当量)混合,在分子筛存在的条件下,室温搅拌2h,再在惰性气体条件下反应16h。所得到的的亚胺为棕色油状物,无需进一步纯化。
3.环己烷甲醛(1.23g,10mmol),4-甲氧基苯胺(1.23g,10mmol),硫酸镁(2.41g)混合,以氯仿(10ml)为溶剂,室温搅拌2h。反应结束后,以碳酸钾为滤饼过滤,然后再浓缩,得到化合物2c。
(纯手工翻译)
hsafhka
2楼2013-12-03 17:22:28
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