中间体

The structures of the target molecula and intermediate compounds were characterized by IR, 1H NMR, 13C NMR and MS.

新化合物及中间体化合物的结构利用IR、1H NMR、13C NMR和HRMS进行了结构表征。

The structures of the target molecula were characterized by IR, 1H NMR, 13C NMR, 2D NMR and elemental analysis.

为合成这些新化合物还合成了10个相关的中间体化合物。

In the world, monochloro methane as the original material of organic silicon, and trifluoro methane as the original material of fluoride intermediate develop very rapidly.

在世界范围内，一氯甲烷作为有机硅的原料、三氯甲烷作为氟化合物中间体的原料，呈现快速增长的趋势。

Monochloroacetic acid is a rather important chemical raw material and organic intermediate product, which is mainly manufactured by chloride of acetic acid using sulfur and anhydride acetic acid as catalyst.

氯乙酸是一种及其重要的化工原料和有机中间体，目前氯乙酸主要以硫磺或醋酐为催化剂进行乙酸氯化生产而得。

Experiments with methoxy substituents exclude the possible involvement of naphthyl cations as reaction intermediates in the cyclization of (o-ethynylphenyl) alkynes.

实验甲氧取代排除参与的可能性萘阳离子反应中间体中环（邻ethynylphenyl ） alkynes。

The dye intermediate 2,6-dichloro-4-nitroaniline was prepared by direct chloridization of nitroaniline in the solution of hydrochloric acid.

在盐酸溶液中，以对硝基苯胺为原料，采用直接氯化法制取了染料中间体2，6-二氯-4 -硝基苯胺。

Can induce the reaction of cleavage H atom from methyl on the ring of deactivated toluenes,such as nitrotoluene. The carbanions caused by base are the very important reaction intermediums, which determined the reaction rate and reaction effect.

该反应体系中，NaOH的加入对此催化反应起着相当关键的作用，研究表明强碱也能像温度一样促进苯环卜甲基的摘氢速度，使底物形成相应的硝基苯甲基阴离子，稳定的硝基苯甲基阴离子是氧化反应进行的重要中间体。

Production and laboratory control records of noncritical process steps can be reviewed by qualified production personnel or other units following procedures approved by the quality unit.

6.7 批生产记录审核 6.70 应当制定并执行审核和批准批生产记录和实验室控制记录，包括包装和贴签的书面程序，以便放行或分发前确定中间体或原料药是否符合规定标准。

Under different initial total egg white lysozyme concentrations in urea solution, the refolding egg white lysozyme intermediates could be deduced to have a tendency to form a bimolecular intermediate aggregate, and this inference was further confirmed by their nonreducing SDS-PAGE and size exclusion chromatography.

当不同浓度蛋白溶菌酶在脲溶液中复性时，蛋白溶菌酶折叠中间体有形成二分子积聚体的趋势，这个推测得到了非还原电泳和体积排阻色谱结果的证实。

Usage: useful for pharmaceutical intermediate, especially useful for intermediate of synthesis aids inhibitor and metallocen catalyst for olefine polymerization.

用途：用作有机功能材料，医药合成中间体以及烯烃聚合用金属茂络合物催化剂配位体。。

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。