作业帮英语翻译As is clear from the recycling experiments,the catalyst
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英语翻译
As is clear from the recycling experiments,the catalyst stays
in the ionic liquid and no detectable leaching of the catalyst
takes place.The system is equally active in the seventh run as
in the first run.It is important to note that the catalyst system
could be stored in the freezer for days between the runs with
neither decomposition nor loss of activity of the catalyst.This
is noteworthy since the flavin catalysts are usually sensitive
toward autooxidative degradation in solution.
In conclusion,we have developed a mild and robust catalytic
system for sulfoxidation.The combination of an electrondeficient
flavin catalyst with the use of an ionic liquid as medium
leads to an efficient and stable system.We have shown that a
variety of sulfides can be selectively oxidized to sulfoxides in
good yields.It was demonstrated that the catalyst in the ionic
liquid can be recycled up to seven times.The selectivity and
yield did not decrease on recycling,and the only product
obtained was the desired sulfoxide.The efficient immobilization
of flavin 2 is most likely due to it being present as its zwitterion
form and therefore it is not extracted by ether.
As is clear from the recycling experiments,the catalyst stays
in the ionic liquid and no detectable leaching of the catalyst
takes place.The system is equally active in the seventh run as
in the first run.It is important to note that the catalyst system
could be stored in the freezer for days between the runs with
neither decomposition nor loss of activity of the catalyst.This
is noteworthy since the flavin catalysts are usually sensitive
toward autooxidative degradation in solution.
In conclusion,we have developed a mild and robust catalytic
system for sulfoxidation.The combination of an electrondeficient
flavin catalyst with the use of an ionic liquid as medium
leads to an efficient and stable system.We have shown that a
variety of sulfides can be selectively oxidized to sulfoxides in
good yields.It was demonstrated that the catalyst in the ionic
liquid can be recycled up to seven times.The selectivity and
yield did not decrease on recycling,and the only product
obtained was the desired sulfoxide.The efficient immobilization
of flavin 2 is most likely due to it being present as its zwitterion
form and therefore it is not extracted by ether.
由于是明确的从回收实验中,催化剂的停留
在离子液体,并没有检出浸出的催化剂
发生.该系统同样是活跃在第七届运行
在首次运行.这是很重要的地注意到,该催化剂体系
可存放在冰箱数天之间运行
既不分解,也不损失催化剂活性.这个
值得注意的是,自黄素催化剂通常是敏感的
对自动氧化降解,在解决办法.
总括而言,我们已制定了一个温和的和稳健的催化
系统磺化氧化作用 .相结合的电子不足
黄素催化剂与使用1离子液体介质
导致一个有效率和稳定的制度.我们已经表明,一
各种各样的硫化物可以有选择性氧化亚砜在
良好的收益.结果表明,该催化剂在离子
液体可循环再用最多的7倍.选择性和
产量并没有减少对循环再造,和唯一的产品
获得理想的亚砜.高效率的固定化
黄素二是最有可能是由于它目前作为其两性离子
形式,因此它是不提取醚.
在离子液体,并没有检出浸出的催化剂
发生.该系统同样是活跃在第七届运行
在首次运行.这是很重要的地注意到,该催化剂体系
可存放在冰箱数天之间运行
既不分解,也不损失催化剂活性.这个
值得注意的是,自黄素催化剂通常是敏感的
对自动氧化降解,在解决办法.
总括而言,我们已制定了一个温和的和稳健的催化
系统磺化氧化作用 .相结合的电子不足
黄素催化剂与使用1离子液体介质
导致一个有效率和稳定的制度.我们已经表明,一
各种各样的硫化物可以有选择性氧化亚砜在
良好的收益.结果表明,该催化剂在离子
液体可循环再用最多的7倍.选择性和
产量并没有减少对循环再造,和唯一的产品
获得理想的亚砜.高效率的固定化
黄素二是最有可能是由于它目前作为其两性离子
形式,因此它是不提取醚.
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