反应的

3A biomimetic catalytic system M_n/CH_3CHO has been used in the selective oxidation of p-chlorotoluene.The effects of the center metal ions,the amount of catalyst and ethanal,the oxygen pressure,the reaction time,and the reaction solvents on the selective oxidation were investigated.

3将M_n/CH_3CHO仿生催化体系用于对氯甲苯的选择性氧化，研究了不同中心金属离子、催化剂用量、乙醛用量、氧气压力、反应时间及反应介质对反应的影响。

Study of the effects of dissolved oxygen and superoxide dismutase on the fluorogenic reaction showed that dissolved oxygen and superoxide radical were relevant to the fluorogenic reaction system.

实验中考察了溶解氧、超氧化物歧化酶对反应体系荧光衍生反应的影响，结果表明体系的荧光反应与溶解氧和O〓〓·有关。

The asymmetric esterification of glycidol catalyzed by lipase was carried out in a nonaqueous medium. The effect of the replacement of water necessary for the function of lipase with water-mimicking solvent on the resolution was investigated.

利用脂肪酶在非水介质中对外消旋环氧丙醇进行不对称酯合成反应，重点研究了强极性有机溶剂作为仿水溶剂完全替代反应体系中的微量&必须&水对酶促拆分反应的影响。

The effects of the surfactants, trioctyl phosphine oxide, sodium dodecyl sulfonate and hexadecyl trimethyl ammonium bromide, on the extraction rate of Co^2^+ were investigated. The acceleration in the kinetics in contributed to the associated molecule~2 TOPO taking part in the extraction process directly. The decrement effects of SDS or CTMAB on the rate of extraction kinetics of Co^2^+ with HDEHP were also observed, which caused by the adsorption of molecules of SDS or CTMAB on the interface and decreased the interfacial adsorption amount of HDEHP. In addition, the extraction rate was reduced by a bigger margin in HDEHP-SDS system. This can be explained in terms of the formation of an electric field at the interface.

研究体系中加入不同表面活性剂所引起萃取速率的不同改变：三辛基氧化膦因与HDEHP形成可萃取的Co^2^+活性分子缔合物，降低了萃取过程活化能而使反应加速；十二烷基磺酸钠和十六烷基三甲基溴化铵因占据发生萃取反应的界面区，减小了HDEHP与Co^2^+反应的机会而使反应减速； SDS还因其在界面形成较强的负电场，造成Co^2^+的附加势能而使萃取速率有更大幅度的降低。

Both catalytic activity and selectivity of Ru(PPh_3)_3Cl_2 were improved in ionic liquid BMImPF_6/DME medium.The conversion of hexene and selectivity ofβ-adduct for the hydrosilylation reaction of 1-hexene with triethoxysilane catalyzed by Ru(PPh_3)_3Cl_2 in ionic liquid BMImPF_6DME (V/V=1/4) medium at 90℃were 100% and 89.0%,respectively.

实验结果表明，在乙二醇二甲醚/离子液体1-丁基-3-甲基咪唑六氟磷酸盐(BMImBF_6)(V/V =1/4)介质中，于90℃下，己烯与三乙氧基硅烷反应的转化率为100%，β加成物的选择性可达89.0%，而用Rh(PPh_3)_3Cl作为反应的催化剂，在纯离子液体BMImPF_6中，就可以高效催化烯烃与三乙氧基氢硅烷的加成反应，过渡金属Rh(PPh_3)_3Cl，Ru(PPh_3)_3Cl_2催化剂/离子液体BMImPF_6催化体系，不仅解决了产物与催化剂分离困难这一难题，同时，离子液体BMImPF_6的存在提高了过渡金属Rh(PPh_3)_3Cl，Ru(PPh_3)_3Cl_2催化硅氢加成反应的活性，特别是β加成物的选择性。

The synthesis of green oxane from isobutyl aldehyde and 2,2,4-trimethy-1,3- pentanediol catalysed by HY zeolite was studied. The effects of ratio of reactants,temperature,solvent,dosage and the recycling of catalyst were investigated.

研究了以异丁醛和2，2，4-三甲基-1，3-戊二醇为原料，HY沸石分子筛为催化剂合成了青叶口恶烷的反应，考察了醛醇比、反应时间、带水剂、催化剂用量与其循环使用性对该反应的影响。

The direct synthesis of dimethyl carbonate from methanol and carbon dioxide using another basic catalyst, potassium methoxide in the presence of CH〓I as a promoter was investigated.

除了用甲醇于二氧化碳合成DMC以外，我们又对以甲醇与尿素为原料合成DMC的路线进行了尝试，筛选出了两个离子液体Et〓NHCl-FeCl〓和emimBr-ZnCl〓作为用甲醇与尿素为原料合成DMC的高效催化剂，研究了各种反应条件如原料的比例、催化剂的添加量、反应的温度等对反应的影响，得到了所报道的在间歇釜中经一步反应合成DMC的最高产率（27％和26％左右）。

The transesterification reaction among poly,poly(ethylene 2,6- naphthalate),and PET／PEN copolymer were studied with1H-NMR.

通过用1H-NMR对聚对苯二甲酸乙二酯与聚2，6-萘甲酸乙二酯、PET/PEN共聚物的共混物酯交换反应的研究，测得了反应速率常数、反应活化能和诱导期。

The preparation conditions, such as the ration between naphthenic oil and fuming sulfuric acid, reaction time and reaction temperature, were investigated and the optimum results were obtained.

对产物用红外光谱仪进行了结构分析，并确定了反应的最佳工艺条件：环烷基油与发烟浓硫酸的体积比为5：1；最佳反应时间为4 h；最佳反应温度为40℃。

Perchloric acid as co-catalyst plays a key role in relation to the catalyst activity.

讨论了反应温度、氢气压力、Pd/C催化剂用量对反应的影响，以及高氯酸作为助催化剂在此反应中起的重要作用。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！