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translation of a sentenceI would appreciate it if you can pr
题目内容：
translation of a sentence
I would appreciate it if you can provide your answer
To a solution containing GuHCl (10 mg,5 mol%) in H2O
(4 mL),was added the carbonyl compound (2 mmol) and the
mixture vigorously stirred for 10 min at room temperature.After,
NaBH4 (20 mg,2 mmol,1 equiv.) was added,the mixture was
stirred for additional 10 min.The reaction mixture extracted with
CH2Cl2,dried over Na2SO4,concentrated under vacuum and
the crude mixture was purified by column chromatography on
silica gel (hexane:ethyl acetate,2:1) to afford pure products.优质解答
在包含GuHCl(10个毫克,5个摩尔%)的水溶液（4毫升）
,加如羰基化合物(2 mmol) 并在室温下强烈的搅动、混合十分钟.然后,加入NaBH4(20个毫克、 2 mmol,1 equiv.),在混合十分钟.反应后的混合物可以萃取出CH2Cl2,经干燥处理可以得到Na2SO4,在真空情况下,通过柱层析法可以浓缩提纯出用于纯度要求非常高的硅胶（乙烷：乙酸乙酯,2：1）.
本人不是学化工等,ONLY FYI!
I would appreciate it if you can provide your answer
To a solution containing GuHCl (10 mg,5 mol%) in H2O
(4 mL),was added the carbonyl compound (2 mmol) and the
mixture vigorously stirred for 10 min at room temperature.After,
NaBH4 (20 mg,2 mmol,1 equiv.) was added,the mixture was
stirred for additional 10 min.The reaction mixture extracted with
CH2Cl2,dried over Na2SO4,concentrated under vacuum and
the crude mixture was purified by column chromatography on
silica gel (hexane:ethyl acetate,2:1) to afford pure products.
优质解答
,加如羰基化合物(2 mmol) 并在室温下强烈的搅动、混合十分钟.然后,加入NaBH4(20个毫克、 2 mmol,1 equiv.),在混合十分钟.反应后的混合物可以萃取出CH2Cl2,经干燥处理可以得到Na2SO4,在真空情况下,通过柱层析法可以浓缩提纯出用于纯度要求非常高的硅胶（乙烷：乙酸乙酯,2：1）.
本人不是学化工等,ONLY FYI!
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