催化的

Chiral N,P ligand 5 was examined for the asymmetric allylic alkylation of 1,3-diphenyl-2-propenyl acetate with up to 89% yield and up to 81.6% ee.

化合物5用于钯催化的1，3-二苯基-2-烯丙基乙酸酯的不对称烯丙基烷基化反应，产率为89%，对映体过量最高为81.6% ee。

And then we found that ytterbium trifluoromethethanesulfonate is a powerful catalyst for the reaction of amine and ethyl acetate.

然后研究了三氟甲磺酸镱催化的胺和乙酸乙酯的反应，从而合成了乙酰苯胺类化合物。

Deuteration of anthracene using MoCl5 as a catalyst proceeded within 24 h at room temperature.

MoCl5催化的蒽的氢氘交换反应在室温下24小时完成。

The self-supported chiral catalysts as novel immobilization of homogeneous catalysts strategy demonstrated excellent enantioselectivities in heterogeneous catalysis of a variety of asymmetric reactions.

近年来，手性自负载催化剂作为一种新的负载模式，已经成功地应用于一些非均相催化的不对称反应中。

They were subjected to a 〓 reaction with sodium azide, hydrogenation, amidation,hydrolysis and Jones oxidation to afford 112 and 116, respectively.

它们分别经过与叠氮化钠的亲核取代反应、氢化、酰胺化、N〓催化的水解，Jones氧化以后分别给出化合物112和116。

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。

Enzyme is a kind of biocatalyst which can catalyze chemical reaction with the most specific, the highest efficien...

酶是自然界中存在的一种最为专一、效率最高、反应最为迅速，并能在常温下进行催化的生物催化剂。

Enzyme is a kind of biocatalyst which can catalyze chemical reaction with the most specific, the highest efficiency and the fastest in natural world and which giveplay to action in the room temperature.

酶是自然界中存在的一种最为专一、效率最高、反应最为迅速，并能在常温下进行催化的生物催化剂。

Any of a group of enzymes that catalyze transamination.

它们对被它们催化的反应有很强的专一性。

The optimal conditions were proved to be using5mo1% chiral ligands to catalyze the reaction at room temperature.

实验证明最佳反应条件是使用5mo1％的手性配体于室温下催化的反应。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。