反应物

This catalytic system can be used in the preparation of a broad range of esters.

该催化剂适用于醛与多种底物醇的氧化酯化反应，尤其是对于一些长链饱和醇也有很好的催化活性。

In order to resolve these questions, we try to find some new protecting group which could be used in the preparation of such unstable nucleotides analogues.

对于一些寡核苷酸的类似物，由于它们在某些化学环境下的不稳定性而使它们的合成具有一定的困难，为了解决这些问题，人们一直在开发新的保护基，以消除这些副反应的影响，更方便地制备这些化合物。

Dozens of analogues with modification at benzene ring were synthesized by using a metal-catalysis coupling.

另外，采用金属催化的偶联反应我们合成了苯环区取代的一系列类似物。

Methods The indoor air concentration of benzene series and formaldehyde in 17 newly decorated apartments were detected from July to December of 2005. The adverse responses of residents from the decoration were investigated by questionnaires.

对17户新装修居民住宅其客厅和主卧室空气苯系物和甲醛浓度进行长期的动态跟踪监测；以问卷调查室内装修的基本情况，及其居民的主诉不良反应。

Cu complex of the surfactant have water soluble ability and surface activity, can catalyze the air oxidation of benzyl alcohol or Benzoin not only in DMF solution but also in alkali water solution.

表面活性剂铜配合物具有较好的水溶性和表面活性，不但在DMF溶剂中有效催化苯甲醇、安息香的空气氧化反应，而且在稀碱溶液中形成的金属胶束也可催化氧化苯甲醇。

It is based on a reaction of charge transfer with p nitrophenol in borax buffer solution.

本文主要研究在硼砂水溶液中，氯氮卓与对硝基酚发生荷移反应，生成稳定的 1∶ 1络合物。

The chemical phase and optical micrography analysis showed that the leaching of copper oxide could be finished soon, chalcocite and bornite could be diges.

化学物相和光学显微图像分析表明，氧化铜的浸出很快就可完成，辉铜矿和斑铜矿也以较快的速度降解为蓝辉铜矿和铜蓝，而铜蓝的浸出反应比较缓

Rarely, the patient may experience significant changes in temperature, allergic reactions to drugs, damage to teeth due to the breathing tubes being placed in the trachea, bleeding problems, bronchospasm in the lungs, aspiration of stomach contents, or injury to nerves when nerve blocks are used.

很少见的情况下，病人会有体温的重要改变，对药物的过敏反应，气管导管置入导致的牙齿损坏，出血的问题，肺部的支气管痉挛，胃内容物的吸入，实施神经阻滞时的神经损伤。

The experimental results showed that: 1 cylindrical catalyst prepared by extrusion was used in mixed butene oligomerization, whose conversion and dimer selectivity wre seperately as high as 41% and 52%.

实验结果表明：1挤出成型法制得的圆柱状催化剂催化混合丁烯齐聚反应的转化率和二聚物选择性分别高达41%和52%。

The metal catalyst complex has an N-heterocyclic carbene ligand, and thus, is excellent in thermal stability and reactivity.

所述金属催化剂配合物含有N-杂环卡宾配位体，因此，其具有极好的热稳定性和反应性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。