查询词典 thiols

Namely, only for biobriquette low presence of dialkyl sulphides and aliphatic thiols was registered.

对于生物型煤来说，仅检测到少量二烷基硫醚和脂肪硫醇的存在。

The poisoning effects of alkyl sulfur compounds on the reactivity of isoprene hydrogenation over supported Pd catalyst are more and more serious with the decrease of the molecular mass of alkyl thiols and dialkyl disulfides.

乙硫醇和二甲基二硫醚使Pd／树脂催化剂中毒的机理是，它们分别在催化剂上发生SH和S-S键断裂，并与Pd形成带烷基基团的S-Pd吸附络合物，致使催化剂上异戊二烯选择加氢活性降低。

On the other hand, a method for the synthesis of-vinyl chalcogenides by the coupling of vinyl bromides with thiols or diphenyl diselenide using copper salts as catalysts in ionic liquids based on amino acids also has been described. The ionic liquids play multiple roles in the reaction: they act as solvent, base, and excellent promoter for the copper-catalyzed coupling reactions.

在新型的氨基酸负离子的离子液体中，开发了一个亚铜盐催化的Z-型溴代烯烃与硫族元素的交叉偶联反应，为立体选择性的制备Z-型烯基硫醚或烯基硒醚类化合物提供了一个新的方法；在此反应体系中，离子液体不仅起到了反应溶剂的作用，而且还起到了金属催化剂的配体和中和反应副产物的碱的作用。

In the first part of this work, it has been demonstrated that the ordered mesostructure of OMC plays an important role in the electrocatalytic activity towards the thiols and the destruction of this structure results in the decrease of such properties.

在论文第一部分中，我们介绍了介孔碳在硫醇类物质的电催化活性中所起的重要作用，以及介孔碳结构的变化导致这些性质的下降。

The redox separation conditions were investigated in detail. It was indicated that TBAPI exhibited appropriate oxidation intensity and well selectivity, thiolethers can be oxidized into sulphoxide, but it cannot oxidize thiols.

详细考察了氧化还原分离条件，实验结果表明，TBAPI具有适宜的氧化强度和良好的选择性，它能将硫醚硫氧化成亚砜，且在同条件下，对噻吩硫不起作用。

Such changes in thiols by allyl sulfurs may also account for the observed hyperphosphorylation of specific cell cycle proteins and the histone hyperacetylation that has been correlated with suppressed tumor cell proliferation.

这些烯丙基硫化物引起的硫醇的改变同时也可以使特异性细胞周期蛋白过磷酸化及组蛋白过乙酰化，从而抑制肿瘤细胞增殖。

Design and synthesis of thiols to engineer surfaces for biomedical applications.

硫醇的设计与合成表面的工程师为生物医学领域。

Tissue concentrations of Cys is maintained at low levels by regulated production and efficient removal of these thiols.

组织中Cys的浓度通过调节Cys生成和有效移除巯基维持在较低水平。

Thiols are also active in the catalytic sites of enzymes,and play important roles in metabolic pathways.

细胞内巯基化合物(包括半胱氨酸、高半胱氨酸和还原型谷胱甘肽等)在维持生命体系的氧化还原动态平衡方面起着重要的作用，它们是与酶活性有关的最具有反应性的官能团，并且在酶代谢过程中起着重要的作用。

Then the selenium-catalyzed oxidative carbonylation of aniline with thiols has been studied.

接着，考察了在催化量硒作用下苯胺和硫醇的氧化羰基化反应。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。