• Based on it, the synthesis method has been improved. Several new compounds have been prepared by the Grignard reaction of its hydrogenation product.

    此基础改进了合成方法,并通过氢化产物格氏反应制备了一些新的化合物

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  • Moreover, experiments showed that the degradation rate was influenced by some factors, such as the catalysis synthesis method, reaction temperature and time.

    同时实验表明,催化剂合成方法合成温度时间因素催化降解效率有影响

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  • It was found that the reaction of synthesis of lead stearate by direct method in aqueous medium could be accelerated markedly by ammonium salts.

    研究发现铵盐介质直接合成硬脂反应具有显著催化加速作用。

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  • High catalytic activity of catalyst, mildness of reaction conditions, convenience of method for application and reuse of catalyst were advantages of the synthesis.

    实验结果表明,该催化剂用于催化合成苯乙酮环乙二缩酮,催化活性可反复使用反应条件温和,操作方法简便

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  • The yield of the addition reaction was increased from 66% to 98% because the synthesis method was improved.

    改进合成方法使加成反应产率原来的66%提高98%。

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  • A new method for the synthesis of benzylidene acetone with near critical water as reaction media was developed.

    试探了一种反应介质合成丁烯方法

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  • Microwave irradiation heating method appears to be a practical clean production method for synthesis of anthraquinone, with rapid reaction rate, high productivity and no pollution.

    微波辐射加热合成反应速度、产率无污染一种应用价值的清洁生产方法

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  • Several synthesis method, reaction effect of different synthesis methods on product composition of mono-alkyl phosphates are discussed.

    论述脂肪醇磷酸单酯几种合成方法反应机理及对最终产品组成影响

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  • In this study, the yield of acetanilide and benzanilide synthesis and the rate of reaction were compared between the traditional heat method and microwave inducement.

    对比研究常规加热微波诱导合成乙酰苯胺、苯甲酰苯胺合成产率反应速率

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  • A method for synthesis of pentaerythrityl bromide and their reaction condition were exploded and improved.

    改进了季戊四合成方法,探索了反应发生的条件

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  • The synthesis method of the invention has the advantages of mild reaction conditions, high yield and easy industrial production.

    本发明所述合成方法具有反应条件温和产率易于工业化生产优点

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  • The synthesis method has the advantages of universal applicability, moderate reaction condition, simple and easily-obtained materials, low cost, simple steps and relatively higher productivity.

    合成方法具有普遍适用性反应条件温和,用料简单易得、价格低廉步骤简单,且产率较高

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  • The synthesis of MMA by the extractive reaction method was studied.

    研究了萃取反应合成甲基丙烯酸甲酯( MMA)。

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  • A convenient and simple method for the synthesis of ets and trans-2,6-diphenyl-1,4-diSelenafUlvenes under ultrasound conditions is described. The reaction mechanism is brieny discussed.

    报道了超声辐射合成顺、反2,6-二苯基1,4-二硒富烯的简便方法讨论了反应机理.。

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  • The method could he divided into "active phenoxide" routing and "active cyanogens" routing according to the actual monomer synthesis process, as well as each reaction mechanism is discussed.

    根据实际的操作过程,将“卤化-酚划分为“活性酚氧离子”路线“活性氰”路线,讨论了可能反应机理

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  • The method could be divided into "active phenoxide" routing and "active cyanogen" routing according to the actual monomer synthesis process, as well as each reaction mechanism is discussed.

    根据实际操作过程,将“卤化-酚划分为“活性酚氧离子”路线“活性氰”路线,讨论了其可能反应机理

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  • Synthesis of Schiff base of tyrosine and morin under microwave radiation, this method has the advantages of good yields, such as short reaction time.

    微波辐射合成酪氨酸桑色素席夫碱方法很多优点

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  • The synthesis method adopts the two-step reaction under microwave radiation, and has the advantages of high reaction speed, short reaction time, and the product yield over 75 percent.

    发明合成采用微波副反应,反应速度快,反应时间产品收率超过75%。

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  • The results show that they have high catalyzing-activity in the reaction of synthesizing esters such as acetic benzyl-ester, and high yield can be obtained by this new synthesis method.

    试验结果发现,该类催化剂对酯化反应很高催化活性,可使羧酸酯获得良好收率

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  • Progress in study on synthesis technique for multi-component functional ceramics powder is re- viewed. A novel synthesis technique, gel solid state reaction method, is described in detail.

    综述了多组复合功能陶瓷粉体制备技术研究进展,较详细地介绍了新出现凝胶相反应合成工艺及其特点。

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  • The reaction mechanism, method of synthesis and property testing of polyoxypropylene series compounds as shrinkage reducing agents in cement concrete are introduced in this paper.

    介绍了聚环氧丙烷高抗收缩的收缩机理制备方法,并且其进行了抗压强度及抗拉强度的性能测试

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  • Solid state reaction under low temperature is a new method of synthesis nanometer powders in recent years.

    低热相反应法近年发现的一种合成纳米材料方法

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  • The mathematical model was established for calculating the maximum reaction rate of ammonia synthesis at optimum reaction temperature and the value solution method for the model was presented.

    建立计算最佳温度下合成最大反应速率模型提出了模型数值解方

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  • The synthesis method has the advantages of rapid reaction speed, high esterification efficiency and greatly improving the purity of the product.

    方法优点是:反应速度快酯化效率高大大提高产品纯度

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  • With orthogonal test of key point temperature of polymerization reaction, a group of reasonable technology parameters are found by synthesis balance coordination method.

    通过聚合反应过程关键工艺温度正交试验,采用综合平衡协调的决策方法,得到了聚合反应过程的一较佳的工艺参数

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  • A simple and mild method for the synthesis of fluorenol was studied. 9 bromofluorene (9 BF) can be selectively obtained by the photochemical reaction of fluorene with N bromosuccinimide (NBS).

    研究N 溴代丁二酰亚胺(NBS)光化学反应及其溴代产物水解反应,提供了温和简便的制备方法

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  • A simple and mild method for the synthesis of fluorenol was studied. 9 bromofluorene (9 BF) can be selectively obtained by the photochemical reaction of fluorene with N bromosuccinimide (NBS).

    研究N 溴代丁二酰亚胺(NBS)光化学反应及其溴代产物水解反应,提供了温和简便的制备方法

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