题目
求翻译,希望大家帮忙.不要工具翻的,谢谢啦!
In a flask fitted with a reflux condenser were added 1.00 g
(10.4 mmol) of 1,2-dimethylimidazole and 1.43 g (10.4 mmol)
of butyl bromide. After addition, the mixture was stirred at
140 ◦C during 1 h to give a white solid. This solid was recrystallized
from acetonitrile and dried under reduced pressure to give
2.29 g (95% yield) of BMMIBr as white crystals. In another
flask, 250 mg (1.07 mmol) of BMMIBr were placed and dissolved
in 5.0mL of water followed by an aqueous solution
of LiTFSI (308 mg, 1.07 mmol) in 5.0mL of water. The reaction
mixture was stirred overnight at room temperature and two
phases were formed and separated. The phase containing the
ionic liquid was washed several times with water, treated with
activated carbon and subjected to a chromatography column
(alumina, dichloromethane). The ionic liquid was dried under
reduced pressure during 3 days at 100 ◦C to give BMMITFSI as提问时间:2021-03-21
In a flask fitted with a reflux condenser were added 1.00 g
(10.4 mmol) of 1,2-dimethylimidazole and 1.43 g (10.4 mmol)
of butyl bromide. After addition, the mixture was stirred at
140 ◦C during 1 h to give a white solid. This solid was recrystallized
from acetonitrile and dried under reduced pressure to give
2.29 g (95% yield) of BMMIBr as white crystals. In another
flask, 250 mg (1.07 mmol) of BMMIBr were placed and dissolved
in 5.0mL of water followed by an aqueous solution
of LiTFSI (308 mg, 1.07 mmol) in 5.0mL of water. The reaction
mixture was stirred overnight at room temperature and two
phases were formed and separated. The phase containing the
ionic liquid was washed several times with water, treated with
activated carbon and subjected to a chromatography column
(alumina, dichloromethane). The ionic liquid was dried under
reduced pressure during 3 days at 100 ◦C to give BMMITFSI as提问时间:2021-03-21
答案
在一个瓶子带有回流冷凝器增加了一点○○克( 10.4 mmol ) 1,2 -d imethylimidazole和一点四三克( 1 0.4m mol) 丁基溴化.之后,此外,混合搅拌,在140 ◦ c在1 h后给予一个白色固体.这是固体结晶从乙腈和干果的...
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
最新试题
- 1电流表是测量通过灯泡电流的实验装置,其中导线的A端没有连接.如果把导线A与接线柱B连接,开关闭合时能正
- 2已知一元二次方程mx2+n=0(m≠0),若方程有解,则必须( ) A.n=0 B.m,n同号 C.n是m的整数倍 D.m,n异号
- 36a^2cm^2的单项数,系数,次数是什么
- 4直线系方程
- 5The parents will use what they have to send their son to technical school.
- 68x-9y=0,9x-9y=2,这个二元一次方程怎么解
- 7莱蒙托夫 帆的阅读答案
- 885._____ his great wealth,he always remained a man of simple tastes.
- 9仿写句子(很简单的!)
- 10要使2a-9的立方根为最大的负整数,则a的值为
热门考点