芳香的
- 与 芳香的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Under the optimized conditions, in-situ-generated N,N -dioxide from the corresponding amide (10 mol%) and m-CPBA (20 mol%) retained the same asymmetric catalytic activity and enantioselectivity, and most of the aromatic,α,β-unsaturated, heterocyclic, aliphatic and steric hindrance ketones could be converted into the corresponding cyanohydrin trimethylsilyl ethers in up to 99% yield and 93% ee.
底物扩展证明,该有机小分子催化体系对芳香酮、杂芳香酮、脂肪酮、位阻酮以及α,β-不饱和酮都具有优良的手性诱导能力,收率高达99%,对映选择性达93%ee。
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Reaction Chemistry of Aromatic Compounds - Electrophilic Aromatic Substitution: Halogenation, Nitration, Sulfonylation and Friedel-Crafts Alkylation and Acylation.
芳香化合物的化学反应--亲电芳香取代反应:卤化,硝基化,磺基化和Friedel-Crafts 烷基化和醯基化。
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Separation of organic-organic mixtures by pervaporation is discussed with emphasis on the following aspects: pola...
其中,又重点报道了有机混合液分离的最新研究成果,将其分为:极性/非极性化合物、芳香烃/脂肪烃体系、芳香烃/脂环烃体系、同分异构体、多元体系和汽油脱硫等六部分进行了详细叙述。
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Creeping shrub of eastern North America having white bell-shaped flowers followed by spicy red berrylike fruit and shiny aromatic leaves that yield wintergreen oil .
北美东部的一种平铺式灌木,花白色钟状,果实红色、芳香,叶光亮、芳香,产生一种冬绿油。
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It is ofreactions of aromatic rings such as acylation, alkylation, etc..
具有芳香性,在环上能进行酰化反应,烷基化反应等芳香环所具有的反应特性。
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Fresh and natural texture, improve the renew of the skin, moisture and aromatize, full of the fragranc
质地清爽自然,促进肌肤再生,令肌肤水润、芳香,充满着让人不由亲近的芳香魅力,适合任何肤质。
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Initial experiment showed that the aromatic compounds were brominated to corresponding bromides with hydrobromic acid or bromine as brominating agent in the presence of sodium nitrite under the mild conditions.
研究发现在NaNO_2存在时,氧气能够以HBr(或Br_2)为溴化试剂,在温和条件下将芳香化合物氧化溴化生成相应的溴代芳香化合物。
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Benzene -- the Prototypic Aromatic System. What is "Aromaticity"?
苯 ——典型的芳香体系&芳香性&是什么?
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The aromatics were chlorinated to corresponding chloride with hydrochloric acid as chlorinating agent and trichloroisocyanuric acid as co-catalyst in the presence of sodium nitrite under mild conditions.
研究发现在NaNO_2存在时,氧气能够以HCl为氯化试剂,以三氯异氰脲酸为助催化剂,在温和条件下将芳香化合物氧化氯化生成相应的氯代芳香化合物。
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The aromatics were chlorinated to corresponding chloride with hydrochloric acid as chlorinating agent and trichloroisocyanuric acid as co-catalyst in the presence of sodium nitrite under mild conditions.
研究发现在NaNO_2存在时,氧气能够以HCl为氯化试剂,(来源:dc3cdcABC论文网www.abclunwen.com)以三氯异氰脲酸为助催化剂,在温和条件下将芳香化合物氧化氯化生成相应的氯代芳香化合物。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?