查询词典 catalyzed

Seven 7-styrylcoumarins were synthesized by palladium-catalyzed Heck reaction of coumarin diazonium salts with substituted styrenes.

采用钯催化香豆素重氮盐的Heck反应合成了七个7-位苯乙烯基取代香豆素化合物，该方法反应条件温和且收率较高。

A new mathod is studied for the synthesis of diketone s with the crosscoupling reaction of organotin reagents and diacyl chlorides catalyzed by cellulose oxyphosphine palladium complex compound.

本文首次采用纤维素氧膦-钯络合物为催化剂，以丙酮为溶剂，有机锡试剂与二元酰氯偶联合成二元酮化物。

Synthesis of dimethyl ether from methanol catalyzed by mixed acid in liquid phase was investigated.

研究了硫酸和磷酸混酸催化甲醇液相合成二甲醚过程。

Dialkylmethylamine is the main by-product in the amination reaction of fatty alcohol with dimethylamine catalyzed by Cu-Ni catalysts.

这是对于Cu-Ni、Cu-Ni-Zn、Cu-Ni-Mg及Cu-Ni-Zn-Mg四个系列的催化剂的普遍规律。

The method of liquid phase synthesis of dioxane from the cyclodehydration of diethylene glycol catalyzed by ASP-type solid acidic catalysts was studied.

研究了ASP型固体酸催化剂一缩乙二醇环化脱水合成1，4-二氧六环的液相反应。

The rate constants and IC50 values of the dismutation of O2 catalyzed by these complexes have been determined by riboflavin-nitroblue tetrazolium illumination method.

采用核黄素-NBT光照法测定了配合物催化O_2~-歧化的反应速率常数K_Q以及IC_(50)值。结果表明，七种配合物具有相当好的SOD活性，它们的K_Q和IC_(50)值分别在4.08×10~6-1.65×10~7'mol·L~(-1)s~(-1)和1.42×10~(-6)-2.93×10~(-7)mol·L~(-1)范围之内。

The reaction mechanism of H2O2 dismutation catalyzed by a non-heme tetraaza annulene complex has been investigated by density functional theory using the B3LYP functional.

采用密度泛函理论B3LYP方法计算了一种非血红素四氮杂轮烯配合物催化H2O2歧化的反应机理。

Ascorbate is concomitantly oxidized to monodehydroascorbate. Some monodehydroascorbate radicals are re-reduced in a reaction catalyzed by monodehy- droascorbate reductase, but the remainder undergoes spontaneous dismutation to ascorbate and dehydroascorbate.

在抵抗氧化胁迫的反应中，抗坏血酸自身被氧化为单脱氢抗坏血酸，一部分单脱氢抗坏血酸在单脱氢抗坏血酸还原酶的催化作用下还原为抗坏血酸，另一部分单脱氢抗坏血酸的在歧化作用下被不成比例地还原为抗坏血酸或氧化为脱氢抗坏血酸。

Furthermore, we also studied the coupling reaction of alkenes with alkynes initiated by carbopalladation catalyzed by divalent palladium.

另外我们还对炔烃碳钯化启动的烯炔偶联反应进行了初步的探索。

This thesis is a part of our ongoing developing the methodology of Pd -catalyzed reactions, and the methods of quenching carbon-palladium bond and regenerating the divalent palladium.

这对过渡金属催化的涉及碳-杂原子的反应是一个拓展，同时提供了一条新的合成方法。

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