查询词典 acid halide

Oxygen and halide anions (Cl〓, Br〓 and I〓) can greatly catalyze the oxidation of ascorbic acid, which produces active oxygen (H〓O〓 and oxygen free radical) and sensitizes the CL emission of luminol.

氧气和卤素离子能催化铜氧化抗坏血酸的反应，铜离子氧化抗坏血酸产生活性氧，而活性氧可以增敏luminol的化学发光。

Hence, for the whole process, the reaction consumed equivalent of halogen acid and alcohol to produce halide and water.

反应实际消耗的是等当量的氢卤酸和醇生成卤代烃和水，是制备伯卤代烃非常有效和清洁的方法。

This result was close to that obtainedin the reaction systems containing both acid and halide additives under the samecondition.

在283 K反应4小时之后，乙醇溶剂中H_2O_2的浓度可以达到1.1％，该结果与目前报道的相同反应条件下液相共存酸和卤素助剂的催化剂体系的H_2O_2生成能力相接近。直接合成H_2O_2反应中得到的H_2O_2浓度相接近。

By reaction of alkyl halide with metallic sodium or hydrogen acid to restore the alkyl halide obtained.

可由卤代烷与金属钠反应或以氢碘酸还原卤代烷制得。

The results show that the catalyst could catalyze the Heck reaction of substituted aryl halide with crylic acid, the yields were above 80%.

结果显示，CL-HA-Pd/Ni具有较快的反应速率和较高催化活性，可成功催化取代芳基卤与丙烯酸的Heck反应，产率在80%以上。

This dissertation also studied the direct synthesis of H_2O_2 from H_2 and O_2 undernormal pressure over polyoxometalates-supported Pd catalysts in the absence of anyliquid acid or halide additives in the liquid phase.

本学位论文中还针对常压下从氢气和氧气直接合成过氧化氢反应考察了在液相不共存任何酸和卤素助剂的情况下，磷钨杂多酸铯盐负载的金属Pd为催化剂的催化性能。

The coupling reactions of Suzuki between the transitional metal-catalyzed phenylo boric acid and benzene halide and the Suzuki-Type between phenylo boric acid and carboxylic acid derivatives are two kinds of important reactions in constructing C-C bond.

过渡金属催化的苯硼酸与卤代苯之间的Suzuki和与羧酸衍生物之间的Suzuki-Type偶联反应是构建C-C健的两种重要反应。

In the second part, the cross-coupling reaction of organoboronic acid witharyl halide catalyzed by Pd has been studied, and the 〓 catalyzedcross-coupling reaction in organic phase and the 〓-TPPTS catalyzed reac-tion in water phase have been investigated also.

结果表明，无论是有机相催化反应还是水相催化反应，都得到了很高的转化率和产率。该反应条件温和，并且硼试剂和亲电底物上可以带各种官能团，适用范围极宽，是一个极有应用价值的反应。

The main reasons were that the algae and organism in the water decreased the ability of removing pollutants by coagulations, the algae which grown again in the open sedimentation tank weakened the removal effect of algae by coagulation; because of the accumulation of algae and algae toxin in the filtration tank, the concentration of algae toxin in the effluent increased; by the function of fluid chlorine, the algae and organisms after the filtration will release microalgae toxin and produce a lot of byproduct such as microalgae toxin, sobomyl and so on, meanwhile, the chlorination produce considerable halide and halo-acetic acid and other disinfection byproduct.

主要表现在藻类和溶解性有机物的存在降低了混凝去除污染物的能力；藻类在露天平流沉淀池中再生长，抵消了混凝除藻效果；藻类和藻毒素在滤池中积累，导致滤后藻毒素升高；穿透滤池的藻类和有机物在液氯作用下，释放微囊藻毒素、土臭素和二甲基异冰片等胞内物质，同时生成数量可观的卤代烃和卤乙酸等消毒副产物。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。