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guolianshun

铜虫 (著名写手)

[求助] 求助翻译一下200字

Method B. Compound (I) (i0 g) was added dropwise with stirring to boron trifluoride
etherate (8 ml) at a temperature not exceeding 15℃
The diethyl ether was distilled off in
vacuum.
The resulting complex of (I) with boron trifluoride was treated with phosphorus pentoxide
similarly to method A. Compound (II) (5.26 g, 59%) was obtained.
Method C. Formic acid (99%; 84 ml) was added at 60~ to the reaction mass obtained by
treating (I) (i0 g) and phosphoric anhydride (58 g) in chloroform. After gas evolution had
finished, the resulting solution was added to 30% potassium hydroxide solution (300 ml) at a
temperature below -5℃
The solid which separated was extracted with chloroform (3 • ]50 ml),
and the solution dried over sodium sulfate. The solvent was distilled off in vacuum. The
residue was distilled and compound (II) (3.8 g, 43%) was obtained.
Propyl ester of ~-isocyanopropionic acid (Ill). This compound was obtained by aknownmethod
[12]. Bp 81-82~ (i0 mm), n~ ~ 1.4163: according to literature data bp 81-82℃ (10 mm),
1.4163.
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wangyuan0929

金虫 (小有名气)

我衷心建议你先把文字拷贝做个精修之后再说找人翻译的事吧……
2楼2014-03-14 10:53:21
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weixiaogang

木虫 (正式写手)

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★
RXMCDM: 金币+1, 多谢应助! 2014-03-14 16:35:29
guolianshun(RXMCDM代发): 金币+5, 多谢应助! 2014-03-31 08:36:41
guolianshun(RXMCDM代发): 金币+3 2014-03-31 08:37:23
方法B:在温度不超过15℃搅拌下将化合物(I)(10g)滴加到三氟化硼醚化物(8ml),真空下蒸馏除去乙醚。
得到的复合物(Ⅰ)与三氟化硼用五氧化二磷类似于方法A处理。得到化合物(II)( 5.26g,59%)。
方法C:将甲酸(99%,84ml),在60 ℃下加入到化合物(Ⅰ)(10g)和五氧化二磷(58g)在氯仿中处理得到的反应物中,有气体逸出后反应完成。在 -5℃下向所得溶液中加入30%氢氧化钾溶液(300ml),用氯仿( 3×50ml)萃取分离固体,并将该溶液用硫酸钠干燥。在真空下蒸馏出溶剂。剩余蒸馏残余物,得到化合物(II)(3.8g,43%)。
化合物( Ⅲ),通过已知方法得到该化合物[ 12 ]。BP 81-82℃(10mm),N~ ~1.4163:根据文献资料沸点81-82℃(10mm),1.4163
在路上
3楼2014-03-14 15:49:47
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weixiaogang

木虫 (正式写手)

化合物三英文名不清楚没法翻译
在路上
4楼2014-03-14 16:16:07
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hxswdl

至尊木虫 (文坛精英)

Tortoise

文献杰出贡献

【答案】应助回帖

引用回帖:
4楼: Originally posted by weixiaogang at 2014-03-14 16:16:07
化合物三英文名不清楚没法翻译

异氰基丙酸丙酯?  Propyl ester of ~-isocyanopropionic acid
Dripping Concentrated!!energetic and active!
5楼2014-03-14 18:54:24
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