条件反应

In according with the reaction mechanism of alchohol and aldehyde, the reactional condition of 414 was originally explored.

根据醛对醚的加成反应机理，对414的合成条件进行了初步探索，确定了反应的最初反应条件。

In this paper, through a series of experiments, two series of quaternary-ammounium Gemini surfactants were synthesized, namely the pair alkylene double quaternary ammonium salt surfactant m-s-m·2Br and the pair the alkylene double quaternary ammonium salt surfactant -s-·2Br. We has carried on the attribute with the infrared spectrum to its structure, and to affected the factor which the synthesis pair the alkylene double quaternary ammonium salt surfactant responded to carry on the discussion. We has discovered the synthesis pair the ethylene double quaternary ammonium salt surfactant m-2-m·2Br optimum condition: The bromo alkane and a tetramethyl ethylene diamine mole of ratio is 3.0: 1.0, makes the solvent by the ethyl alcohol, 80℃ under responds for 48 hours in the backflow temperature; Synthesis pair alkylene double quaternary ammonium salt surfactant 12-S-12 ·2Br optimum condition: 12 tertiary amine and 1, 3- propylene dibromide (1, 4- two bromines butane) a mole of ratio is 2.2: 1.0, makes the solvent by the ethyl alcohol, responds for 48 hours in the constant temperature 80 ℃ under backflow.

本文通过一系列的实验，合成了两个系列的Gemini型表面活性剂，即双烷撑双季铵盐表面活性剂m-s-m·2Br和双烷撑双季铵盐表面活性剂-s-·2Br，用红外光谱对其结构进行了表征，并且对影响合成双烷撑双季铵盐表面活性剂反应的因素进行了讨论，找出了合成双乙撑双季铵盐表面活性剂m-2-m·2Br的最佳条件：溴代烷与四甲基乙二胺的摩尔比为3.0：1.0，以乙醇作溶剂，在回流温度80℃下反应48小时；合成双烷撑双季铵盐表面活性剂12-s-12·2Br的最佳条件：十二叔胺与1，3-二溴丙烷(1，4-二溴丁烷)摩尔比为2.2：1.0，以乙醇作溶剂，在恒温80℃下回流反应48小时。

A new synthesis process for chloroform and dimethylformamide by the reaction of alkalizing and deacidifying chlorine oil and dimethylamine was studied.

研究了氯油加碱除酸后和二甲胺水溶液反应制备氯仿和N，N-二甲基甲酰胺的新工艺路线，通过正交实验对工艺条件进行优化，得到的优化合成工艺条件为：反应温度为50℃，保温反应时间为60min，n∶n=1∶1.10。

The hexyl acetate was synthesized from n-hexanol and acetic acid by direct esterification.

以乙酸、正己醇为原料，直接酯化合成乙酸己酯，分别研究了反应温度、反应时间、原料配比、带水剂、催化剂用量等条件对合成反应的影响，确定了最佳工艺条件。

A new fullerene derivative containing energy-producing groups was prepared, and the reaction conditions affecting the yield were studied by the kroenecker method. The optimal reaction conditions with a 53.5% yield (based on consumed C60) are: 1:3:6 of molar ratio of C60 , o–nitrobenzaldehyde and sarcosine , 55℃ of reaction temperature, 12 h of reaction time, 40mL of toluene solvent.

利用N-甲基甘氨酸、邻-硝基苯甲醛和C60反应，合成分离出了含有硝基的新型富勒烯吡咯烷衍生物，通过正交试验对其工艺条件进行了研究，探讨了反应物剂量比、温度、时间和溶剂体积对产物产率的影响，得到了合成产物的最佳工艺条件：反应物剂量比为1：3：6、温度为55℃、反应时间为12h、溶剂甲苯体积为40mL，此时产物产率可达到53.5%（以消耗的C60计）。

The yield of conversion and reaction rate were investigated under different reaction temperature, reactant ratio and catalyst amount through conditional experiment, and best conditions were confirmed, which was 75℃, the ratio of 1:4 for binary acid to ethanol and the amount of silicotungstic acid was 2% of mixing binary acid quality.

通过条件试验，分别考察了在不同的温度、投料比、催化剂用量情况下酯化反应的转化率和反应速率，最终确定了该反应的最佳反应条件：温度75℃，酸醇比为1：4，催化剂用量为混合二元酸质量的2%。

The optimum conditions were as follows: the volume proportion of water and glacial acetic acid was 4, the reaction temperature was 30℃ and reaction time was 10 minutes.

由此对反应条件加以优化，得出反应的适宜条件是当水和冰醋酸的体积比为4，反应温度为30℃，反应时间为10 min时，收率可达78%。

To optimize the reaction condition for the purpose of target compounds synthesis, the advance of 1,3-dipolar cycloaddition and click chemistry is reviewed. The conditions of the reaction between azides or nitrile oxides and terminal alkynes were optimized experimentally and the best operation condition was established.

论文综述了偶极环加成反应和点击化学的进展，特别对Cu催化的腈氧化物或叠氮化物与端炔化合物之间的1，3-偶极环加成反应进行了理论分析与实验研究对反应条件进行了优化，确立了实验室中进行反应的最佳操作条件。

By esterification, saponification, doubledecomposition and formulation, liquid rare earth of monoisooctyl phthalate complex heat stabilizer was prepared with phthalic anhydride, isooctyl alcohol, sodium hydrate, rare earth chloride, mixed solvent and other reagents. The optimum conditions are: the temperature of esterfication is 130～140℃,and the reaction time is 1h. The temperature and time of saponification is 60℃ and 10min respectively. The temperature of double decomposition is 60～70℃,and the reaction ti...

摘 要：以邻苯二甲酸酐、异辛醇、氢氧化钠、氯化稀土、混合溶剂、助剂为原料，通过酯化反应、皂化反应、复分解反应以及复配制备了以邻苯二甲酸单异辛酯稀土为主要成分的液态稀土复合热稳定剂，其工艺条件为：酯化反应的温度控制在 130～ 14 0℃，反应时间为 1h ；皂化反应的温度为 6 0℃，反应时间为 5min ；复分解反应的温度在 6 0～ 70℃，反应时间为 1h ；水洗温度控制在 6 0～ 6 5℃；混合溶剂的用量为 5 0 %，稀土含量为 6 0 3%；在复配过程中，采用亚磷酸酯作为辅助热稳定剂，其用量为 5 %～ 7%，PVC中加入 2 %的这种稀土复合热稳定剂，在185℃下，其热稳定时间为 4 5min。

Finally,ITC added with amino resin to prepare PSTU resin.The temperature、ratio and reaction time of aminition and esterification reactions were investigated.

分别考察了胺化、二异硫氰酸酯加成反应的反应温度、反应配比及反应时间等条件对树脂合成的影响，确定优化工艺条件。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。