Based on it, the synthesis method has been improved. Several new compounds have been prepared by the Grignard reaction of its hydrogenation product.
在此基础上,改进了它的合成方法,并通过它的氢化产物的格氏反应,制备了一些新的化合物。
Moreover, experiments showed that the degradation rate was influenced by some factors, such as the catalysis synthesis method, reaction temperature and time.
同时实验还表明,催化剂合成方法、合成温度及时间等因素对催化降解效率都有影响。
It was found that the reaction of synthesis of lead stearate by direct method in aqueous medium could be accelerated markedly by ammonium salts.
研究发现铵盐对水介质直接法合成硬脂酸铅反应具有显著的催化加速作用。
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,催化活性高,可反复使用,反应条件温和,操作方法简便。
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的产率由原来的66%提高到98%。
A new method for the synthesis of benzylidene acetone with near critical water as reaction media was developed.
试探了一种以水为反应介质合成苯丁烯酮的新方法。
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.
微波辐射加热合成蒽醌反应,速度快、产率高、无污染,是一种很有应用价值的清洁生产方法。
Several synthesis method, reaction effect of different synthesis methods on product composition of mono-alkyl phosphates are discussed.
论述了脂肪醇磷酸单酯的几种合成方法、反应机理及对最终产品组成的影响。
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.
对比研究了常规加热与微波诱导下合成乙酰苯胺、苯甲酰苯胺的合成产率及反应速率。
A method for synthesis of pentaerythrityl bromide and their reaction condition were exploded and improved.
改进了季戊四溴的合成方法,探索了反应发生的条件。
The synthesis method of the invention has the advantages of mild reaction conditions, high yield and easy industrial production.
本发明所述的合成方法具有反应条件温和,产率高,易于工业化生产的优点。
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.
该合成方法具有普遍的适用性,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。
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.
报道了超声辐射下合成顺、反2,6-二苯基1,4-二硒富烯的简便方法,讨论了其反应机理.。
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“卤化氰-酚法”划分为“活性酚氧离子”路线和“活性氰”路线,讨论了其可能的反应机理。
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.
根据实际的操作过程,将“卤化氰-酚法”划分为“活性酚氧离子”路线和“活性氰”路线,讨论了其可能的反应机理。
Synthesis of Schiff base of tyrosine and morin under microwave radiation, this method has the advantages of good yields, such as short reaction time.
在微波辐射下,合成酪氨酸与桑色素席夫碱,该方法有很多优点。
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.
本发明的合成法采用微波副射下的两步反应,反应速度快,反应时间短,产品收率超过75%。
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有很高的催化活性,可使羧酸酯获得良好的收率。
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.
综述了多组元复合功能陶瓷粉体制备技术的研究进展,较详细地介绍了新出现的凝胶相反应合成法的工艺及其特点。
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.
介绍了聚环氧丙烷类高抗收缩剂的收缩机理和制备方法,并且对其进行了抗压强度及抗拉强度的性能测试。
Solid state reaction under low temperature is a new method of synthesis nanometer powders in recent years.
低热固相反应法是近年发现的一种合成纳米材料的方法。
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.
建立了计算最佳温度下的氨合成最大反应速率模型,提出了模型的数值解方法;
The synthesis method has the advantages of rapid reaction speed, high esterification efficiency and greatly improving the purity of the product.
该方法的优点是:反应速度快,酯化效率高,大大提高了产品纯度。
With orthogonal test of key point temperature of polymerization reaction, a group of reasonable technology parameters are found by synthesis balance coordination method.
通过对聚合反应过程关键工艺点温度的正交试验,采用综合平衡协调的决策方法,得到了聚合反应过程的一组较佳的工艺参数。
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).
研究了芴与N 溴代丁二酰亚胺(NBS)的光化学反应及其溴代产物的水解反应,提供了一种温和、简便的制备芴醇的方法。
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).
研究了芴与N 溴代丁二酰亚胺(NBS)的光化学反应及其溴代产物的水解反应,提供了一种温和、简便的制备芴醇的方法。
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