查询词典 catalyzed

Rhodium-catalyzed asymmetric 1,4-conjugate addition reaction is one of the most efficient methods for the carbon-carbon bond formation.

铑催化不对称1，4-共轭加成反应是一种非常有效的碳—碳键形成方法。

In this paper, chiral molybdenum or tungsten 2'-pyridinyl alcoholate complex catalyzed asymmetric epoxidation of cis-1-propenylphosphonic acid in H2O was reported.

目前磷霉素的生产是通过以Na2WO4为催化剂、在乙醇中以30%的H2O2将顺丙烯膦酸环氧化得到消旋产物，再利用α-苯乙胺进行拆分而得到[2，3]。

In part Ⅰ, the aquous direct aldol reactions catalyzed by small organo-catalyst—imidazolc were studied in detailed.

本文第一部分详细研究了咪唑为有机小分了催化剂催化水相直接羟醛缩合反应。

They found that pyrolytic reactions were catalyzed by alkaline earth metal cations in carbonates and inhibited by silicates.

Karabakan和玉"俄罗斯"m(1998)矿物矩阵的影响石油页岩在转换成有机物的干酪根在热解反应。

Alkylamine reaction with dialkyl cyanodithioiminocarbonate was catalyzed by quaternary ammonium salts at room temperature to yield 3-alkylamine-5-amino-1,2,4-triazole in good quality and high yields. After imidization and reaction with an α,β-unsaturated acid derivative, the reaction intermediate was hydrolyzed in the presence of a Lewis acid to obtain the target product.

烷基胺与氰基亚胺硫代二甲酯在季氨盐催化作用下得到质量好、收率高的3-烷氨基-5-氨基-1，2，4-三氮唑，进一步经过亚胺中间体并与α，β-不饱和酸酯作用后，中间产物在Lewis酸催化作用下水解得到三唑嘧啶酮。

The ligands were found to be effective in palladium-catalyzed asymmetric allylic alkylation to construct chiral quaternary carbon center.

这类配体在前手性亲核试剂的不对称烯丙基化构筑手性季碳中心的反应中，显示了较好的反应活性及对映选择性。

The mechanisms of the ruthenium-catalyzed reaction of organic azide with terminal alkyne have been investigated using density functional theory.

采用密度泛函理论，对在Ru催化剂存在下，有机叠氮化合物和末端炔的反应机理作了深入理论研究。

The recent development about applications of ionic liquids to transition metal -catalyzed cyclization of alkyne and enyne compounds was introduced.

概述了离子液体在过渡金属催化炔及烯炔类化合物环合反应中应用研究进展。

The isomerization reaction of propylene oxide to produce allyl alcohol catalyzed by basic lithium phosphate was studied.

研究了环氧丙烷在碱性磷酸锂催化作用下异构化生成烯丙醇反应过程，考察催化剂的制备条件，异构化温度对催化性能的影响，以及催化反应机理和动力学特性。

We have demonstrated the epoxidation of allyl chloride can be catalyzed by 1-3 in mild conditions.

本文还系统研究了温和条件下1一3分别催化氯丙烯环氧化反应。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了