查询词典 catalyzed

Palladium-catalyzed Suzuki-Miyaura cross-coupling reaction of organoboron with organic electrophiles has been recognized as one of the most important carbon-carbon bond building reactions.

钯催化的有机硼试剂与有机亲电试剂的Suzuki-Miyaura 交叉偶联反应是构建碳一碳键的最重要的反应之一。

Cross-Coupling Reaction of Organoboron with Arylhalide by Pd° Catalyzed;;Studies on Syntheses,Properties,Structures and Bioactivities of Hydrazones and Its Complexes

中文题名具有生物活性的酰腙及其配合物的研究；钯催化下硼试剂与卤代芳烃的偶联反应

The reaction has been drawing increased attention in that the reaction permit the use of organoboron compounds that are thermally stable and inert to water and oxygen.In this section microwave promoted Suzuki reaction of Sodium tetraphenylborate (NaBPh4) with carboxylic anhydrides catalyzed by Pd(PPh3)2Cl2 in THF was first reported.

第二章：微波辐射下Pd配合物催化NaBPh_4与羧酸酐的偶联反应研究本章中我们在微波辐射条件下，研究了PdCl_2(PPh_3)_2催化NaBPh_4与羧酸酐偶联反应，合成出了十种不对称芳酮，并分别考察了微波辐射功率、辐射时间、溶剂和原料配比等因素对反应的影响，优选出了较佳的反应条件，并根据文献及实验结果，讨论了可能的反应机理。

We discuss the mechanism of trimerization of nitriles catalyzed by organolithium compounds and study the catalystic characteristics. Using this new method, the yield of triazines is greatly improved.

另外，实验探讨了有机锂化物对芳香腈三聚反应的催化作用，得到了较高的产率，同时，研究了它的作用机理和催化性能。

S-Naproxen was obtained by asymmetric cross-coupling reaction of 2-bromo- 6-methoxynaphthalene with organozinc reagent of ethyl α- bromopropionate, catalyzed by chiral β-aminoalkylphosphine-nickel complexes.

用β -氨基烷基膦的NiCl2 配合物为手性催化剂，以 6 -甲氧基- 2 -溴萘和α-溴代丙酸酯的有机锌试剂为原料，通过不对称交叉偶联反应合成S --萘普生。

And we have demonstrated through differential scanning calorimetry, thermogravimetry,XPS and SEM analysis that the formation of highly reflective and conductive silver layers on polyimide film is a result of the silver-catalyzed and oxygen-assisted decomposition of the polymer overlayer and the self-accelerated aggregation of silver clusters on the film surface.

并通过差示扫描量热、热失重、XPS和SEM分析证明了聚酰亚胺表面高反射高导电银层的形成是在银催化下、氧气辅助的表层聚合物降解和表层银颗粒自加速聚集共同作用的结果。

The degradation of organic pollutants in aqueous solution by metal oxides and noble metals catalyzed ozonation is reviewed.

回顾了近二十年来金属氧化物和贵金属催化臭氧降解水中有机污染物的研究现状。

Pentaerythrityl tetraacetate was synthesized from acetic acid and pentaerythrite, catalyzed by SO(superscript 2- subscript 4)/TiO2-La2O3 rare-earth solid superacid. Various factors affecting the reaction were discussed.

以稀土固体超强酸SO(上标 2-下标 4)/TiO2-La2O3为催化剂，乙酸和季戊四醇为原料合成季戊四醇四乙酸酯，并考察了影响反应的因素。

Condensation of cyclohexanone and pentaerythritol catalyzed by iodine supported on activated carbon was investigated.

为了研究活性炭负载单质碘催化合成季戊四醇双缩酮催化活性，以季戊四醇和环己酮为原料，合成环己酮季戊四醇双缩酮。

In addition,the activity of the putadiene polymerization catalyzed by SAAC.Nd.Fe-AlEt Cl-Al in the presence of phenanthroline and the relationship bet-ween the polybutadiene microstructure obtained with the content of Fe in SAAC.Nd.Fe were studied.

此外，初步考察了在邻啡绕啉存在下SAAC·Nd·Fe体系聚合丁二烯的活性以及所得产物的微观结构与络合物SAAC·Nd·Fe中Fe的含量关系。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。