催化的

Because of their strong nucleophility of NHCs, the asymmetric Staudinger reaction between ketenes and imines catalyzed by chiral NHC was achieved, gave -lactams with excellent enantioselectivities.

中文摘要我们组利用氮杂环卡宾的亲核性，成功地实现了氮杂环卡宾催化的烯酮与亚胺的Staudinger反应。

Sulfuration olefin with high activity had better replenishinge effect than that of zinc dialkyl dithiophosphate whose activity depended on catalysis of temperature.

其中，高活性的硫烯比需要温度催化的ZDDP对硫化层的补充作用更明显。

The current time curve of the autocatalytic electrode processes under constant potential on planar electrode is studied.

讨论了在恒定电位电解下自催化的电极过程的情况，其特征是电流对时间的曲线上出现极小点。

We studied the effect of water on the palladium acetate-catalyzed coupling reaction of aryl boronic acid with aryl bromide or acyl chloride in ionic liquid or PEG, and found that water had a remarkable rate accelerating effect on the Suzuki reaction and Suzuki-Type reaction when other reaction conditions were uniform.

研究了水对离子液体或聚乙二醇中Pd2催化的卤代苯或苯甲酰氯与苯硼酸的Suzuki和Suzuki-Type偶联反应收率的影响。

This enzyme catalyses the conversion of angiotensin I to angiotensin II in the blood plasma and endothelia and prevents the breakdown of bradykinin.

这种酶催化的血管紧张素一血管紧张素血液中的血浆和内皮二，防止故障的激肽转换。

We also studied the enantioselective conjugate addition of chalcone in the presents of chiral Ni2 aminoalcohol complexes.

我们还研究了手性氨基醇配体/镍盐催化的a，β-不饱和酮的不对称迈克尔加成反应，以及酰腙的不对称烯丙基化反应。

On the epoxidation of styrene with molecular oxygen using cobalt-containing faujasite Co(superscript 2+-NaX as the catalyst have been studied.

100℃对含钴八面沸石Co(上标 2+-NaX催化的以氧气为氧化剂的苯乙烯环氧化反应的影响。

Preparation and Properties of A Chloroperoxidase-like Catalytic Antibody Iodination of free tyrosine and tyrosine in protein is m...

游离酪氨酸和蛋白质中酪氨酸的碘化是由甲状腺匀浆液和亚细胞部分中存在的酶催化的。

The immobilization of laccase is important for the fiber optic biosensor based on enzyme catalysis.

漆酶的固定化研究对基于漆酶催化的光纤生物传感器具有十分重要的意义。

The immobilization of laccase is important for the fiber optic biosensor based on enzyme cataly-sis.

漆酶的固定化研究对基于漆酶催化的光纤生物传感器具有十分重要的意义。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。