• 通过磷酰性仲核取代反应高产率地合成了手性HMPA 类似物

    The chiral HMPA analogues were prepared in high yield by nucleophilic substitution between the chiral secondary amine and phosphoryl chloride.

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  • 长期研究中,发现Fe3O4粉体很难合成沸石进行筛合成反应从而导致产品不纯净不均一

    In long studies, Fe3O4 powder was found hard uniformly mixing with the zeolite synthesis reactant, which would lead to the impurity and inhomogeneity of the product.

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  • 燃料电池让氢空气通过催化合成反应产生电力唯一副产物仅热量

    Fuel cells combine hydrogen and air to produce electricity by running them through a chemical catalyst. The only byproducts are heat and water.

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  • 合成反应一样分解代谢需要的能量原料来自身体分泌物

    As well as producing energy and building material, catabolism also breaks down material for excretion from the body.

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  • 因此催化反应关键手性配体设计合成

    So the key of asymmetric reaction is design and synthesis of the chiral ligands.

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  • 简述了分别一氧化碳二氧化碳甲醇二甲等进行羰基化反应合成碳酸二甲酯(DMC)的研究进展

    Advances in the carbonylation synthesis of dimethyl carbonate (DMC) from methanol or dimethyl ether with carbon monoxide or carbon dioxide were summarized.

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  • 研究了D,L -丙交酯硫酸催化作用正丁醇进行交换反应合成乳酸丁酯条件。

    Butyl lactate was synthesized by the ester exchange reaction of d, L-lactide and n-butanol under the catalysis of sulfuric acid.

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  • 烷基合成洗涤剂重要原料长链烯烃酸性催化剂作用烷基化反应生成的。

    Linear alkylbenzenes are important raw materials for the synthesis of washing agent and it is synthesized from the alkylation of benzene with long-chain alkene in the presence of an acid catalyst.

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  • 高温反应,该方法具有合成温度反应时间,所得产物硬度发光亮度好等优点。

    It is more bright, has low hardness, low temperature of synthesis and requires less time in synthesis when compared with products synthesized by high temperature solid-phase reactions.

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  • 马来松香聚甘油反应合成了一种非离子表面活性剂马来松香聚甘油酯PGMRE)。

    Nonionic surfactant polyglycerol maleated rosin ester(PGMRE) has been synthesized by the reaction of maleated rosin and polyglycerol.

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  • 双氧水尿素反应合成过氧化尿素。

    Urea peroxide is synthesized by reaction of urea with hydrogen peroxide.

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  • 新的催化体系(铁-锑复合催化剂)催化三乙基铝(TEA溴甲烷进行烷基交换反应合成三甲基铝(TMA)。

    Trimethylaluminum(TMA), usually used in organic catalysis and organic synthesis, was synthesized by reaction of triethylaluminium (TEA) with methyl bromide on iron-stibonium complex catalyst.

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  • 介绍了碳酸甲酯苯酚交换合成碳酸二反应热力学

    Reaction thermodynamics of diphenyl carbonate (DPC) synthesis by the transesterification reaction from dimethyl carbonate and phenol is introduced.

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  • 硫酸氢催化甲醇酯化反应合成丙酸苄酯。

    Benzyl propionate was synthesized by the esterification reaction of benzyl alcohol with propionic acid using potassium bisulfate.

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  • 研究二溴对甲偶氮合成及其钡显色反应的条件。

    A new reagent, dibromomethyl carboxyazo was synthesized and its colour reaction with barium was studied.

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  • 诱导基因包括细胞生长白质合成应激反应相关的基因。

    Genes involved in cell growth, protein synthesis and stress response exhibited obvious induction.

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  • 提出了高温静态气氛下利用金属氮气直接反应制取金属氮化物的合成方法

    A synthesis method is propsed to prepare metal nitrides by direct nitridation of metals in static nitrogen atmosphere at high temperature.

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  • 用双a环氧树脂乙酸反应合成具有刚性骨架环氧树脂加成多元醇(EAP),并用FTIR1h-NMR对其进行了表征

    A new kind of epoxy resin adduct polyol (EAP) with rigid backbone was synthesized by the reaction of bisphenol - a type epoxy resin with acetic acid and characterized with FTIR and 1h - NMR.

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  • 水解作用通过反应分解一种化学合成比如盐水解析,淀粉葡萄糖催化转变

    Decomposition of a chemical compound by reaction with water, such as the dissociation of a dissolved salt or the catalytic conversion of starch to glucose.

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  • 这些香料都是以草酸二乙酯相应原料通过交换反应合成的。

    This flavour is synthesized by the ester interchange using diethyl oxalate and relative alcohol as materials.

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  • 研究了常温下苯酚悬胶体三氯氧反应合成磷酸三苯酯工艺条件找到一条比较好的合成方法

    Some technological conditions of the synthesis of triphenyl phosphate by the reaction of sodium phenolate and phosphorus oxychloride were studied, and a better process was found out.

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  • 乙腈、聚乙二醇存在下,用苯甲硝酸铈反应合成硝基苯甲醚。

    In the presence of ethanonitrile and polyethylene glycol, anisole reacts with ammonium ceric nitrate to form o-nitroanisole.

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  • 苯二氯化反应合成聚合物的模型化合物唑啉。化合物元素分析、红外光谱质谱测试。

    Ti -containing imidazoline model compound was prepared by reacting o-phenylene diamine with titanium tetrachloride. The compound was identified by elemental analysis, IR and MS.

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  • 催化剂通过乙醇反应合成酯。

    Ethyl decanoate was synthesized from capric acid and ethanol by using ferric potassium alum as catalyst.

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  • 过氧化氧化淀粉,控制一定氧化深度,进一步反应合成一种新型上浆剂。

    A new slurry agent was synthesized by oxidization of the starch with hydrogen peroxide under a certain oxidization degree, and then reacting with a cross-link agent.

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  • 固定反应模拟合成制备天然气联合气化反应过程进行了研究

    The reaction process of natural gas and coal was investigated using a fixed-bed reactor to model the furnace for preparing synthesis gas.

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  • 合成反应条件反应机理了探讨,评价了不同还原方法所得产物结构香气关系

    Reaction conditions and mechanism are discussed, and relationship between odor and structure of the obtained products by different reducing reactions is evaluated.

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  • 利用三乙胺盐酸盐酚醛环氧树脂进行开反应合成酚醛环氧树脂季铵盐

    The new polymer quaternary ammonium salt was synthesized from epoxy phenolic resin via ring-opening reaction with aqueous solution of triethylamine hydrochloride.

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  • 利用三乙胺盐酸盐酚醛环氧树脂进行开反应合成酚醛环氧树脂季铵盐

    The new polymer quaternary ammonium salt was synthesized from epoxy phenolic resin via ring-opening reaction with aqueous solution of triethylamine hydrochloride.

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