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fengyulz

新虫 (小有名气)

[求助] 简单的小段英文 【化学实验操作】

本来想付费请公司翻译的,但就那么两段...

名词不需要翻译,还有单位,例如HTIB、2-phenyl-1-pentene、H2O这些,单位是指mmol、g、ml、mg这些,统统都不需要译出来。

意思我都看得懂,但因为要写在文章里的,所以要翻得顺畅。感谢感谢。

          Crystalline HTIB (3.92g, 10mmol) was added to a magnetically stirred solution of 2-phenyl-1-pentene (1.60g, 10.9mmol) in 95% methanol (45mL). The HTIB dissolved rapidly (15s) with mild heat evolution (41℃) to give a colorless solution. After 20 min at room temperature, the solution was concen trated under aspirator vacuum, and the oily mixture that remained was partitioned between CH2Cl2(40mL) and H2O(40mL). The organic layer was washed with H2O(2•40 mL) and brine(35 mL), dried over MgSO4, and concentrated to a colorless oil(2.66g). Flash column chromatography of the oil on silica gel with 10% EtOAc/hexanes gave 1-phenyl-2-pentanone[2] as a colorless oil;1.43g (88%);
         A soln. of [ 2] (1.746g,10mmol),N-bromosuccinimide(1.783g,10mmol),and 10mg AIBN in CCL4 (40ml) was heated under reflux for 1 h.After is was allowed to cool to r.t.,the precipitated succinimide was removed by filtration and the solvent by distillation:crude product (1.53g,100%).
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Catplei

铜虫 (正式写手)

【答案】应助回帖

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fengyulz: 金币+8, 翻译EPI+1 2017-07-01 23:40:31
2-苯基-1-戊烯溶于95%甲醇中,搅拌下加入HTIB,HTIB迅速溶解并稍放热,得无色溶液。20min后,水泵抽真空浓缩反应液,得油性混合物,用二氯和水萃取。有机相经水、食盐水洗涤,硫酸镁干燥,浓缩得无色油状物,经硅胶柱层析(10%乙酸乙酯/正己烷)分离得无色油状1-苯基-2-戊酮【2】
【2】,NBS和AIBN溶于CCl4,加热回流1h,冷却至室温,滤去琥珀酰亚胺固体,蒸除溶剂,得粗品。

具体数值自己补上
2楼2017-07-01 17:15:54
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