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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] 一小段常见实验操作的翻译,难度很小

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The title compd. (I) an intermediate for the AMK, is prepd. by reaction of  II) with Ethylamine  in the presence of Ethylamine.HCl at 20-60°. Ethylamine (g) was fed into a stirred soln.of 318 g II in 300 mL MeOH with addn. of 15 mL ethereal HCl at 55°. After feeding 314 g Ethylamine, the mixt. was held
for 15h. Then, MeOH was distd. in vacuo, the mixt. was dild. with 300 mL C6H6, the soln. was filtered, and C6H6 was
distd. in vacuo. The residue was dissolved in 480 mL Me2CO and acidified to pH 1 with ethereal HCl. After cooling for
15h, the ppt. was filtered to give 240 g I (62.2% yield).

[ Last edited by chemlabs on 2012-3-20 at 15:04 ]

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