• 均相不对称氢化反应技术成熟吗?

    Homogeneous asymmetric hydrogenation: a mature technology?

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  • 本文综述多相对称催化氢化反应的最新研究进展

    The research progress in enantioselective hydrogenation catalyzed by heterogeneous catalysts is reviewed.

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  • 烯烃与取代烯烃氢化反应具有良好催化活性

    It exhibited good catalytic activity for the hydrosilylation of olefins, such as decene, do-d...

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  • 综述了近年不对称催化氢化反应中固载催化剂研究进展

    The research progress of supported catalysts for asymmetric catalytic hydrogenation was reviewed.

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  • 从发现氢化反应以来有机硼试剂广泛应用有机合成中。

    Organoboron compounds have been proved to be useful reagents in organic synthesis.

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  • 本文氢化反应机理研究结论应用分析罐头食品痕量锡。

    This paper reports the application of a conclusion from mechanism study to the trace analysis of tin in tinned foods.

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  • 通过氢化反应研究硅碳型聚氨酯泡沫塑料有机硅匀合成工艺条件

    By hydrosilation reaction, the technological conditions for synthesis organosilicon foam stabilizers of polyurethane foams were studied.

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  • 叙述了丙二酰氧基硼氢化制备及其原位烯烃选择性氢化反应

    The preparation of sodium malonyloxyborohydride in situ and its selective hydroboration alkene are described.

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  • 报道了海南粗新碱类似物反常氢化反应,并提出可能反应机理

    Abnormal hydrogenation of an aromatic ring of hainanensine analogue is reported. The possible mechanism for this reaction is provided.

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  • 近年来过渡金属络合物对酮类化合物不对称催化氢化反应研究进展进行了综述。

    The recent progress of the ketones in catalytic asymmetric hydrogenation is reviewed in this paper.

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  • 对于动物油生成的可再生柴油来说,高温高压动物脂肪氢气作用发生氢化反应

    For renewable diesel made from animal fat, fats are hydrogenated by reacting the tallow with hydrogen under high pressure at high temperature.

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  • 并根据实验数据计算氢化反应动力学参数放大实验工业设计提供参考数据。

    The kinetic parameters are calculated by the experimental data, which are useful for the scale up test and industrial design.

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  • 评述了近年金属配合催化的前手性羰基化合物不对称氢化反应研究进展

    Recent advances in asymmetric hydrosilylation of prochiral carbonyl compounds catalyzed by chiral transition metal complexes are reviewed in this paper with47 references.

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  • 文摘:评述了近年金属配合催化的前手性羰基化合物不对称氢化反应研究进展

    Abstract: Recent advances in asymmetric hydrosilylation of prochiral carbonyl compounds catalyzed by chiral transition metal complexes are reviewed in this paper with 47 references.

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  • 结果表明,温度氢化反应异构影响较大,氢气压力催化剂浓度对异构化影响相对较小。

    The research showed that temperature affected the isomerism most, then the pressure of hydrogen and the concentrations of catalyst.

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  • 第二部分描述了新的手性环状ON NO -型设计合成表征不对称转移氢化反应中的应用

    The second part of this thesis fouses on designed synthesis, characterization of new chiral cyclic ONNO-type ligand and application in asymmetric hydrogenation.

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  • 综述近年来衍生物作为手配体构成金属络合物前手性亚胺不对称氢化反应中的应用

    In this article, the recent application in recent years of metal complexes composed of binaphthyl derivatives in asymmetric hydrogenation of prochiral alkenes, ketones and imines are reviewed.

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  • 不对称催化硼氢化反应应用广泛且具有工业价值的反应其中的硼还原前手反应有着举足轻重的作用。

    Asymmetric hydroboration is a kind of widely applied and valuable reaction, in which borane reduction of prochiral ketones reaction is an important method.

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  • 本文综述了手配体及其碳碳双键不对称催化氢化反应研究最新进展,并对手性膦配体的设计做了分析和总结

    The paper reviewed the study on the chiral phosphines in asymmetric catalytic hydrogenation and their nearest development. Thedesign of chiral phosphines were also evaluated and summarized.

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  • 主要锗、锡氢化反应酸度,缓冲溶液选择动态线性范围氧化剂的选择,共存元素干扰及其消除进行了实验。

    The acidity for hydride generation reaction, selection of buffer solution and oxidizer, dynamic linear range, interference from coexistent elements and their elimination were studied.

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  • 详细介绍了氢化发生反应体系氢化反应两种机理讨论了氢化物发生原子光谱中的应用现状和发展趋势。

    The reaction systems of hydride generation and its mechanisms are described in detail. Its application and future development in atomic spectrometry are also discussed.

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  • 系统地总结了不对称催化氢化反应各类手性体的特点性能对于每类配体的最新研究成果进行了较详细的综述。

    The characteristics and performances of various kinds of Chiral Biphosphine Ligands in asymmetric catalytic hydrogenation are systematically reviewed with 78 references.

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  • 利用氨基乙腈及丙烯腈亲核加成、氢化反应合成了一种新的不等有机化合物2 -氨基乙基-二(3-氨基丙基)胺。

    A new inequilateral organic polyamine, 2-aminoethyl-bi(3-aminopropyl)amine, was synthesized by the additional and hydrogenation reaction of aminoacetonitrile with acrylonitrile.

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  • 本文以研究二铁硅烷氢化反应作为重点以期通过硅氢化反应解决二茂铁衍生物作为催化剂固体推进剂中的迁移问题

    This thesis is focused on the hydrosilylation of ferrocenylsilanes, expecting to solve the problem of migration of ferrocene derivatives as combustion catalyst in solid propellant.

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  • 泰伯还谈到瓶盖内衬垫引起氢化反应(有臭鸡蛋气味)的螺纹瓶盖相关问题,以及用以消除这种气味净化剂可能带来负面影响。

    Taber covers the screwcap-related problems of reduction (bad egg smells) associated with screwcap liners and the possible downside of the copper fining used to avoid the smells.

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  • 这些反应增加不完全燃烧可能性有可能释放未燃尽和光化学活性合物大气中。

    These reactions increase the probability of incomplete combustion and are more likely to release uncombusted and photochemically active hydrocarbon compounds into the atmosphere.

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  • 过化学反应,可以产生碳氢化合物。

    Through chemical reaction, hydrocarbons can be created.

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  • 第二聚酰亚胺聚合物芳香族四酸二氢化芳香族二异氰酸酯反应生成的。

    The second polyimide polymer is prepared with aromatic tetracid dihydride and aromatic diisocyanate.

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  • 对待任何冲击身体反应相同的:除了抗争还是抗争,就像人在面对压力是一种名叫氢化皮质酮的激素会冲击我们的神经系统

    The body's response to any threat is the same: fight or flight, as the stress hormone cortisol rushes our systems.

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  • 对待任何冲击身体反应相同的:除了抗争还是抗争,就像人在面对压力是一种名叫氢化皮质酮的激素会冲击我们的神经系统

    The body's response to any threat is the same: fight or flight, as the stress hormone cortisol rushes our systems.

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