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chemlabs新蟲(chóng) (初入文壇)
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[求助]
一小段常見(jiàn)實(shí)驗(yàn)操作的翻譯,難度很小
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翻譯內(nèi)容請(qǐng)勿跟帖發(fā)布,麻煩用一個(gè)TXT文件上傳附件,謝謝。 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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