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諾遙金蟲 (正式寫手)
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[求助]
論文翻譯求助
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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是一個文章上的兩段 麻煩大家?guī)兔Ψg和解釋一下,特別是第二段我不是很理解他的意思,還有這個物質(zhì)的提純方法是什么呢? 2是另外一篇文章上的,F(xiàn)iltration through a pad of potassium carbonate followed by concentration gave 2c。這段要怎么理解呢?他所說的方法是什么呢? 麻煩大家啦!非常感謝! |
鐵蟲 (初入文壇)
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1.以定量的收率制備脂肪族對甲氧基苯亞胺:條件如下---溶劑為二氯甲烷,硫酸鎂作為除水劑(2g),對應(yīng)的醛(10 mmol,1當量)和對甲氧基苯胺(10 mmol,1當量)混合攪拌2h。 2.制備對甲氧基苯亞胺:條件如下---二氯甲烷作為溶劑,對應(yīng)的醛(10 mmol,1當量)和對甲氧基苯胺(10 mmol,1當量)混合,在分子篩存在的條件下,室溫攪拌2h,再在惰性氣體條件下反應(yīng)16h。所得到的的亞胺為棕色油狀物,無需進一步純化。 3.環(huán)己烷甲醛(1.23g,10mmol),4-甲氧基苯胺(1.23g,10mmol),硫酸鎂(2.41g)混合,以氯仿(10ml)為溶劑,室溫攪拌2h。反應(yīng)結(jié)束后,以碳酸鉀為濾餅過濾,然后再濃縮,得到化合物2c。 (純手工翻譯) |

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