查询词典 catalysis

Optically active axially dissymmetric binaphthyl derivatives have been extensively used as excellent chiral ligands in asymmetric catalysis and chiral recognition.

光学活性的联萘衍生物以其独特的立体化学性质作为优异的C2轴手性诱导源，已被广泛地应用到不对称催化反应和手性识别中。

Much better asymmetric induction was obtained with the catalysis of Ag /MAPs than with Ag /H〓-MAPs, and the binaphthyl backbone of R configuration was found to match to the S, S pyrrolidino group.

含有中心手性和轴手性两种手性因素的氮膦配体中，轴手性为R构型时，和中心手性S，S构型相匹配。

The development of aqueous-organic biphase catalysis had received much attention.

重点评述了水相／有机相两相体系。

Under the catalysis of rare earth composite solid superacid SO42-/ZrO2-La2O3,reaction of a-pinene and anhydrous oxalic acid afforded bornyl oxalate smoothly. Followed by saponification reaction, borneol was obtained selectively.

在稀土复合固体超强酸SO42-/ZrO2-La2O3的催化下， a -蒎烯与无水草酸的反应能顺利生成草酸龙脑酯，经皂化反应后，能选择性地合成正龙脑。

These kind of compounds in nano-scaled have special properties in catalysis、optics、electromagnetics、calorifics、electronics、gas sensors et al.

由于纳米级别的普鲁士蓝衍生物材料在催化、光学、电磁学、热学、电子学、传感器、力学等方面都表现出不同于传统材料的优异特性，它引起了科学工作者的广泛关注。

Enzymatic esterification of glycerol and n- caprylic acid was studied under the catalysis of Novozyme 435 by means of microwave irradiation and conventional heating.

研究了微波辐射和常规加热下脂肪酶Novozyme 435催化甘油与n-辛酸的反应。

This paper reviews the development of synthetic technology of carbon nanotube by catalytic py-rolysis of carbonous compound and compares the advantages and disadvantages of moving support method and floating catalysis method.

介绍了催化热分解含碳化合物合成碳纳米管的技术，比较了基板法和流动催化法的优缺点以及它们的发展前景，并简单地介绍了碳纳米管的应用领域。

The cheap and easily available nonmetal selenium catalyst possesses both efficiency to catalytically activate carbon monoxide and the function of phase-transfer catalysis. What is more, it can be recycled.

价廉易得的非金属硒作催化剂不但具有良好的催化活化CO的性能及反应过程相转移催化特性，而且能循环使用。

Epoxycedrane was firstly synthesized at home and abroad from α-cedrene by epoxidation of hydrogen peroxide under the catalysis of ruthenium trichloride and pyridine-2, 6-dicarboxylic acid.

以三氯化钌和2，6-二羧基吡啶为催化剂，双氧水为氧化剂，时α-柏木烯进行环氧化反应合成环氧柏木烷。本合成方法在国内外尚未见报道。

The main points were as follows:Influence of exogenous Fe3+, Fe2+ on LOX catalysis was studied as viewed from chemicobiology for the first time.

具体研究内容、实验主要结果及结论为：首次从化学生物学视角研究外源Fe2+、Fe3+等对LOX结构及其催化进程的影响。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷