查询词典 synthesis method

Especially, three different synthetic methods were used to prepare the critical intermediates secondary amines. We found that the synthesis of different structural secondary amines should use different method of reducing amides.

尤其是对关键中间体仲胺的合成，本研究探索了三种不同的合成方法，找到了适用于本研究中仲胺结构不同时的相应的合成方法。

The synthesis of target compound 6 was by mixture anhydrides method.

结论采用重复过量混合酸酐法合成了目标化合物（6），所用方法经济、有效、可靠。

This design is yearly produces 100,000 tons chromic anhydrides the synthesis crafts, uses in the sulfuric acid method the single pot process to carry on the production.

本设计是年产10万吨铬酸酐的合成工艺，采用硫酸法中的单罐法进行生产。

A facile one-step method waspresented for the synthesis of N-fluoroalkanesulfonyl amidines 〓 inmoderate to good yield from the reaction of azides, ketones or aldehydes, andsecondary amines at room temperature.

在和无官能团取代的烯胺化合物的反应中，它发生了烷基迁移过程，而且利用该反应我们实现了由酮或醛，二级胺和叠氮一锅法合成脒类化合物〓。

We developed a new method for the synthesis of cycl[3,2,2]azines.Using oxidant promoted 1,3-dipolar cycloaddition reaction, 3,5-dicarbonyl-indolizines were prepared. By treating with low-valenttitanium, cycl[3,2,2]azines were obtained in high yields.

我们通过l，3—偶极加成反应合成了多种3，5-二羰基中氮茚，然后在低价钛试剂作用下还原偶联，以较高收率得到各种取代Cycl[3，2，2]azine，开发了一种全新的Cycl[3，2，2]azine合成法。

Besides, this method can also be used in the synthesis of other catalysts.

另外，这种合成方法也可以用于其他催化剂材料的制备。

Meanwhile the chemistry prize, also split three ways, was awarded for "the development of the metathesis method in organic synthesis". In this case Yves Chauvin, Robert Grubbs and Richard Schrock were the recipients.

同时，化学奖也被分成三部分，授予了&创造有机合成中的复分解法&的人，他们分别是伊夫－肖万、罗伯特－格拉布和理查德－施罗克。

Meanwhile the chemistry prize, too split Number 3 ways, were awarded for "the development of the metathesis method in organic synthesis". In the case Yves Chauvin, Robert Grubbs and Ricexert Schrock were the recipients.

同时，化学奖也被分成三部份，授予了&创造有机合成中的复分解法&的人，她们分别是伊夫－肖万、罗伯特－格拉布和理查德－施罗克。

Process for the synthesis of cisplatin was studied for the purpose of energy saving,and alcohol ammonia method was chosen.

为达节能环保的目的，对顺铂的合成工艺进行了新的研究。

The one carbon unit transfer reaction involving in the tetrahydrofolate coenzymes has caused great interest which is very important in the living system and has played an important role in the designing and syntheses compounds (especially the anti-cancer and LCD materials). In our study it was found that benzimidazolium salt has the ability to transfer one or two one-carbon unit and is a kind of new tetrahydrofolate coenzymes model. This research provides new method for biomimetic synthesis.

在非酶催化条件下，不仅实现了与生物体内相类似的一碳单元转移反应，而且可以转移具有不同官能团的取代&一碳单元&，使这种一碳单元转移反应传递的功能化一碳单元更加多样化，这方面强劲的研究工作进展，将为异常活跃的合成化学提供更多常规合成方法难以实现或实现不理想的仿生合成新方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。