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氧化合物

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The results of CO hydrogenation showed that the existence of CNTs enhanced the activity of the Rh-Ce-Mn/Si02 catalyst. Under the specific reaction conditions, the CO conversion was 11.86% and the yield of oxygenates was 336.2g/ when the CNTs content was 10%.

CNTs促进的铑基催化剂的CO加氢活性明显提高,当CNTs添加量为10%时,一定条件下催化剂上含氧化合物的时空收率可达336.29/。

Historically, oxygenates like MTBE were developed in the 1970s as octane enhancers to replace toxic additives like lead, which were phased out of gasoline.

从历史上看,甲基叔丁基醚含氧化合物一样制定了在20世纪70年代的辛烷值促进剂,以取代有毒添加剂,如铅,这是逐步淘汰汽油。

The results indicate that Zr-doping materials have better electrochemical performance and weaker electrode polarization and no passivating film can be found over the electrode, and among which the sample with the Zr∶Ti=1∶10 is the best.

实验结果表明:锆的掺杂在一定程度上改善了锂钛氧化合物的电化学性能,降低了电极极化,在电极表面未形成钝化膜。

The oxidation number of oxygen is –1 in peroxides.

P60 在过氧化合物中,氧原子的氧化数为-1。

Results showed that both the structureof 〓 and their long carbon chains made energy transfer much easier.

氧化合物中〓结构和较长的碳链使其接受激发能和夺取质子更易进行。

This novel reagent was treated with LDA to produce polystyrene-supported a-seleno carbanions, which reacted with alkyl halides and epoxides, followed by stereospecific selenoxide syn-elimination to give olefins and allylic alcohols respectively.

它与LDA反应形成α—硒基稳定的碳负离子,再与卤代烃或环氧化合物发生α—烷基化反应,烷基化后的树脂可以在30%的双氧水中进行氧化-消除,以良好产率和较高纯度合成了取代烯烃或烯丙基醇。

Cyclo oxygenase compounds are found throughout the body - for example, in the nervous system and stomach.

氧化合物的发现,整个机构-例如,在中枢神经系统和胃。

A solvent-free Darzens condensation reaction for the preparation of epoxide compounds in the presence of NaOH by grinding was achieved.

在无溶剂、氢氧化钠的作用下,用研磨的方法、通过Darzens缩合反应制备环氧化合物

The opening reaction of epoxide 17 by nucleobases was achieved regioselectvely to give designed isonucleosides in reasonable yield.

通过环氧化合物17的碱基开环反应,区域选择性地合成了设计的异核苷并利用制备HPLC分离了区域异构体。

The latest progress in the research of polycarbonate synthesis directly from carbon dioxide and epoxides is reviewed.

综述了近几年来发展的用于二氧化碳与环氧化合物直接催化合成聚碳酸酯的各类催化剂,并详细讨论了其催化反应机理。

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She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了,但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场,你等着挨绳子吧!

Several theories about reigniting and extinguishing of the arc have been refered.

本文综合考虑了几种电弧重燃和熄灭理论。