通过磷酰氯与手性仲胺的亲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.
在氟化钾催化下，芳香醛与氰乙酸乙酯发生克脑文格尔缩合反应，得到高产率的缩合产物。
The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield.
酰化最高产率达到67.0%。
结果：此法可得到较高产率、高质量的食用棉子油。
Results the results showed the method could get the higher productivity and quality of cottonseed oil.
这样可以得到最高产率的反应中间物，即目的产物。
This will allow a maximum yield of the react intermediate which is the desired product.
这样可以得到最高产率的反应中间物，即目的产物。
This will allow a maximum yield of the reaction intermediate which is the desired product.
本发明的方法具有高产率、大长径比、尺寸均匀等优点。
The method of the invention has the advantages of high yield ratio, large aspect ratio, uniform size and so on.
高纯度和高产率的制备碳纳米管是碳纳米管研究的一个重点。
High purity and high produce to preparation carbon nanotubes is one of carbon nanotubes research's emphases.
该新工艺特点是能提高产率 ，降低能耗 ，减少设备费用。
The characteristic of this process is able to increase the productivity, decrease energy cost and decrease equipment cost.
间苯氧基苯乙酮可由酚钾与间溴苯乙酮在醋酸铜催化下以高产率合成。
Phenoxyacetophenone could be prepared from potassium phenolate and m bromoacetophenone via Ullmann reaction catalyzed by copper acetate in high yields.
所述合成反应的反应条件非常温和，可以以较高产率得到目标化合物。
The reaction conditions of the synthesis reaction are very mild, and target compounds can be obtained with higher yield.
这是一种具有高产率生物质的谷物，可能成为用于生产乙醇的生物原料。
The plant is a high-yielding biomass crop that's being studied as a possible biomass source for the production of cellulosic ethanol.
萃取发酵是解决发酵过程中的产物抑制，提高产率及转化率的有效手段。
Extractive fermentation is an effective method to overcome the product inhibition in the fermentation process and increase the yield and the conversion rate.
采用模板导向法高产率地合成了两个含长链亚烷基桥的芳炔类共轭大环。
The synthesis of the first two arylenealkyne conjugated macrocycles containing long alkylene bridge via Glaser coupling of template-directed tetraacetylenes was reported.
本发 明具有合成工艺简单、高产率、低成本的优势，便于工业化生产。
The method has the advantages of simple synthetic process, high yield and low cost, and can be applied in industrial production.
煤炭分选过程自动控制的主要目的是在保证产品质量的前提下，提高产率。
Automatic control of coal separation is for the purpose of improving productivity, while product quality must be ensured.
另外，氮化物半导体膜(11)形成的裂隙很少，从而能够大幅提高产率。
Moreover, the nitride semiconductor film (11) develops reduced cracks, resulting in a greatly increased yield rate.
（你为什么想提高产率？已有的蛋白不够你做初步的结晶实验吗？）我回敬道。
Why do you want to improve the yield? Don't you have enough protein for crystallization trials?
这种特性，加上长的工作寿命，使得该产品十分适合于高产率的半导体封 装中。
This feature, coupled with a long work life, makes it ideal for high volume semiconductor applications.
以磷酰氯为原料通过与手性仲胺的亲核取代反应高产率地合成了手性HMPA类似物。
The chiral HMPA analogues 1 and 2 were prepared in high yield by nucleophilic substitution between the chiral secondary amine and phosphoryl chloride.
每种方法各自有其优点和缺点，但无污染，高产率的合成方法，越来越受到人们的重视。
Each method has its advantage and weakness, but the method of no pollution and high productivity is more and more concerned by people.
本发明公开了一种由吡咯、芳香醛和空气为原料高产率合成四芳基卟啉的方法和设备。
The invention discloses a method and an apparatus for the synthesis of tetaraary porphyrin at high yield with raw materials including pyrrole, aromatic aldehyde and air.
事实证明通过一系列多级串联连续流动搅拌反应器的混合能够获得高产率和重大的经济效益。
It was shown that considerable gains in production rate and economics can be achieved by passing the reacting mixture through a series of CSTRs.
酮的对甲苯磺酰腙在含水的乙腈中与聚苯乙烯二醋酸磺苯在温和条件下反应得到高产率的酮。
Reaction of tosylhydrazones of ketones with CPSID in wet acetonitrile affords the corresponding parent ketones in excellent yields under mild conditions.
首先采用溶胶-凝胶法制备镍催化剂，在此基础上用化学气相沉积法高产率地制备了碳纳米管。
The catalyst was first produced by sol-gel method and the carbon nanotubes were high yield synthesized by the catalytic chemical vapor decomposition method.
一种博舒替尼的制备工艺，简化反应步骤，优化反应条件，提高产率，为工业化生产铺平道路。
The invention discloses a process for preparing bosutinib, which simplifies reaction steps, optimizes reaction conditions, improves yield and paves the way for industrial production.
本文探索了分别探索了制备适当钙含量和高产率钙皂的工艺条件，并综合得出了最佳的工艺条件。
The technology of preparation propriety calcium in calcium soap and high production rate is studied. The best technology conditions are found.
一种用于合成超级磨粒的改良方法，其可提供具有高品质、高产率且窄尺寸分布的工业超级磨粒。
An improved method for synthesizing superabrasive particles provides high quality industrial superabrasive particles with high yield and a narrow size distribution.
在微波辅助下，以廉价的腺苷为原料，经6步反应，以较高产率合成了具有重要生理活性的阿糖腺苷。
With the assistance of microwave irradiation, vidarabine is afforded in high yields through 6 steps, starting with adenosine, which can be obtained cheaply and conveniently.
在微波辅助下，以廉价的腺苷为原料，经6步反应，以较高产率合成了具有重要生理活性的阿糖腺苷。
With the assistance of microwave irradiation, vidarabine is afforded in high yields through 6 steps, starting with adenosine, which can be obtained cheaply and conveniently.
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