烯基
- 与 烯基 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Isoprene could be deeply hydrogenated to isopentane on nickel catalyst.
异戊二烯在镍基催化剂作用下可深度加氢为异戊烷。
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Finally the reaction of isoprene with OH radical in the presence of NO x was discussed brieflly.
最后对NOx存在下的异戊二烯/OH自由基反应进行了简略讨论。
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First, a series ofα-oxo ketene dithioacetals were preparated on the basis of our recent work.
具体研究如下:1。在十分温和的条件下,合成了一系列α-羰基二硫缩烯酮类化合物。2。
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Therefore it is very important to explore the feadibility of clean synthesis lf complex compounds from a-oxo ketene dithioacetals
因此,以a-羰基二硫缩烯酮类化合物为合成子,探索复杂化合物的绿色合成方法将具有重要意义
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Oxo ketene dithioacetals are a kind of versatile intermediates in organicsynthesis. It can be widely used in forming aromatic and heterocyclic compounds.
α-羰基二硫缩烯酮类化合物是一类重要的有机合成中间体,广泛应用于芳环和杂环化合物的合成中。
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Second, we investigated the aldol reactions of the specialα-oxo ketene dithioacetals with aromatic aldehydes under the mild conditions in good yields.
在温和的条件(室温、30℃)下,高产率地实现了α-羰基二硫缩烯酮与芳香醛的缩合反应。3。
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From the reaction mechanism, which involved formation of benzodiazepinium ethoxycarbonylmethylate, the reaction mechanism, which involved formation of benzodiazepinium ethoxycarbonyl- methylate followed by cycloaddition reaction, was tentatively proposed.
通过研究反应过程中分离出的副产物反丁烯酸二乙酯III和4,5-二氢吡唑-3,4,5-三羧酸乙酯IV,初步提出了反应经过乙氧羰基甲基化苯并二氮杂卓翁中间体V再发生环加成反应的机制。
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Therefore, studies and applications of the ring-opening reaction of 1, 3-dithiolancycolpentyl moiety should be a valuable research project.
因此,α-羰基环二硫缩烯酮的1, 3-二硫戊环的开环反应及其在合成中的应用研究是一重要的研究课题。
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The tetraoxazoline ligands only afforded the-configuration whether monometallic and/or bimetallic palladium complexes were formed upon the complexing process. Using the chelation-induced axially chiral palladium complex as a catalyst, excellent catalytic activities and enantioselectivities in the Wacker- type cyclization of allylphenols with up to 99% ee were gained.
当它与钯离子配位后只得到了轴构型为S的单金属或双金属配合物,并将该配体应用于钯催化的邻烯丙基苯酚的Wacker-type环化反应中,获得了很好催化活性和高达99% ee。
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Poly(N-isopropylacrylamide-co-2-hydroxyethyl methacrylate)/clay hydrogel was copolymerized with NIPA and HEMA cross-linked by clay to form a new kind of nanocomposite hydrogel P(NIPA-co-HEMA)/clay was obtained.
以无机粘土为交联剂制备了具有温度、pH双重敏感性的聚(N-异丙基丙烯酰胺-co-甲基丙烯酸-β-羟乙酯)/粘土纳米复合水凝胶P(NIPA-co-HEMA/clay,并用红外和X衍射对其结构和形态进行了表征。
- 推荐网络例句
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。