Please help us improve the quality of example sentences! Edit on Github

我们研究了硼化物的体积效应和电子效应对茂金属催化体系聚合活性的影响。Both stereo effect and electron effect of borane on the activity of ethylene polymerization were investigated.

以三种不同的煤焦油沥青为原料,分别与吡啶硼烷反应制备了硼取代中间相沥青。Boron substituted mesophase pitches were synthesized by co pyrolysis of different coal tar pitches with pyridine borane complex.

Other words in sentence

硼烷对前手性酮的不对称还原是合成手性仲醇的重要方法。Asymmetric borane reduction of prochiral ketones is a good process to the synthesis of enantiomerically enriched secondary alcohols.

对恶唑硼烷催化前手性酮砜不对称还原反应进行了半经验MNDO研究。The asymmetric reduction of ketosulfone with borane catalyzed by oxazaborolidine is computed by means of the semi-empirical MNDO method.

以煤焦油沥青和吡啶硼烷为原料采用加压热缩聚工艺制备硼取代聚芳烃中间相沥青。Boron substituted polyaromatic mesophase was prepared by co pyrolysis of a coal tar pitch with pyridine borane complex under autogeneous pressure.

不对称催化硼氢化反应是应用广泛且具有工业价值的反应,其中的硼烷还原前手性酮反应有着举足轻重的作用。Asymmetric hydroboration is a kind of widely applied and valuable reaction, in which borane reduction of prochiral ketones reaction is an important method.

于是,我们和其合作来深入研究该类配体的不对称催化机制和功能,得到了如下有意义的结果。Thus we cooperate to study the function and mechanism of this catalyst in the asymmetric borane reduction reaction, and the following results are obtained.

Other words in sentence

上述新型配体与硼烷作用形成的手性口恶唑硼烷可用于前手性酮的不对称催化还原反应。The chiral oxazaborolidines that formed by the reaction of the new ligands above with borane can be used in the asymmetry catalytic reaction prochiral ketones.

催化剂具有扭曲的椅式构型,与硼烷在N原子处配位形成加合物,反应是放热的。The catalyst is a twisted chair structure and reacts with borane at the N site of the catalyst to form catalyst borane adduct. The formation reaction is exothermic.

同时,拓扑结构理论、多面体骨架电子对理论等的提出也推动了结构化学的发展,进一步拓宽了结构化学的研究范围。Meanwhile, the topological theory and polyhedral skeletal electron-pair theory propelled the further development of borane chemistry and expanded the scope of structural chemistry.