三乙胺

Using DMA as solvent and NEt〓 as base, the yield of biphenyl was up to 94% after 4h at 132℃.

当溶剂为DMA、碱为三乙胺时，碘苯在132℃反应4小时，联苯产率达94%。

The effects of water content and the added amount of triethylamine on peptide synthesis by immobilized enzyme were different from that of free enzyme. The catalytic efficiency of immobilized enzyme was better than that of free enzyme in most cases. The reuse times of immobilized α-chymotrypsin on MCM-22 are about 4-5 times.

结果表明，有机溶剂中含水量、三乙胺的加入量对自由酶与固载化酶的影响程度不同；多数情况下固载化酶的催化效果优于自由酶；吸附固载化酶的重复使用次数有限。

It is demonstrated that living polymerization can be achieved when the concentration of electron pair donors such as DMAB or Et3N is higher than that of trace water in the polymerization system,and that polymers with narrow molecular weight distribution can be obtained.

发现当N，N-二甲基苯胺或三乙胺的浓度稍高于质子性杂质的浓度时，即能实现异丁烯的活性聚合，得到分子量分布较窄的聚合物。

Triethylamine and ethyl ether were freshly distilled in nitrogen over potassium before use.

对于 三乙胺和乙醚的蒸馏提纯，是在氮气的保护下进行操作的，烧瓶中，加入乙醚，用氮气保护，置换体系中的空气，然后加入K，回流。

The influences of triethylamine amount, surfactant, reaction temperature and time on the size and shape of lanthanum hydroxide nanorods were investigated in detail.

详细研究了三乙胺的用量、表面活性剂、反应温度和时间对产物形貌及尺寸的影响。

The condensation reaction,in which the yield of intermediate product after refining process was more than 90%,used iso-butylaldehyde and formaldehyde as materials,Et 3N as catalyst.The hydrogenation,in which the conversion of hydroxypivaldehyde and selectivity of NPG were respectively 99% and 95%,used Cu-ZnO as catalyst,and ethanol as solute,meanwhile in the hydrogenation,the impurity in material could also ...

缩合反应采用异丁醛和甲醛为原料，三乙胺为催化剂，在 60℃左右反应，缩合产物经减压蒸馏和结晶、干燥，得到收率为 90 %以上的中间体羟基戊醛；加氢反应采用自制的Cu -ZnO催化剂，乙醇为溶剂，在 15 0℃将HPA加氢生成新戊二醇，HPA转化率为 99%，新戊二醇收率在 95 %以上，而且HPA缩合反应的副产物在加氢反应中也转化为新戊二醇。

In addition, the studies ofphotophysical and photochemical behavior of phenothiazines bymeans of laser flash photolysis were carried out.

此外，用激光闪光光解技术研究了吩噻嗪衍生物的光物理和光化学性质，并探讨了有三乙胺、四氰乙烯存在时对光解产物的影响。

Monochloroethylene carbonate is prepared by chlorination of ethylene carbonate with sulfuryl chioride ,a solution of monochloroethylene carbonate in ethylene carbonate is reacted with triethylamine to give vinylene carbonate.A parameter design method was applied to select the optimum synthesis conditions.63.3％ and 78％ yields superior to the conventional for monochloroethylene carbonate and vinylene carbonate were obtained respectively,and the process was also simplified .

以碳酸乙烯酯为原料，用磺酰氯作为氯化剂生成一氯代碳酸乙烯酯，三乙胺为脱卤化剂在碳酸乙烯酯溶剂中合成碳酸亚乙烯酯，对一氯代碳酸乙烯酯和碳酸亚乙烯酯制备的工艺参数进行优化，收率分别达到63.3％和78％，均超过了传统方法，且简化了工艺，缩短了反应时间，易于工业化生产。

Bromoxynil octanoate was synthesized from bromoxynil, octanoic acid and thionyl chloride in the solvent using DMF and N(C 2H 5) 3 as catalysts by one step reaction.

以DMF、三乙胺为催化剂，在溶剂中，用辛酸直接合成了溴苯腈辛酸酯，实现由酸合成酯的一步反应。

Ionic liquids were synthesized under various molar ratios of Et3NHCl to AlCl3. The effects of ionic liquids and extraction conditions on the thiophen removal and recovery were investigated using thiophen containing n-Octane as model gasoline.

用盐酸三乙胺(Et3NHCl)和无水AlCl3按不同的摩尔比合成了离子液体，并评价了其对模型汽油中噻吩硫的脱除与回收效果。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。