酚类

The catalytic mechanism of prolinamide phenol on the direct aldol reaction was studied using quantum mechanics theory.

利用量子力学理论研究了脯氨酰胺酚类催化剂催化直接不对称Aldol反应的机理。

This paper selects"Preparation and characterization of palladium-lanthanum supported catalyst and its use in the amination of 2, 6-diisopropylphenol"as the research subject of thesis for Doctor's Degree, and has theoretical importance and practical value.

因此，本论文选择了"钯-镧负载型催化剂的制备、表征及其在酚类胺化反应中的应用"这一课题，具有重要的理论意义和实用价值。

Second, it as well as contains multiple- phenolic compound, oxide enzyme and peroxide enzyme, which work like Ashman and could clear the human being body's garbage.

其次，莲藕中含有多酚类化合物、氧化物酶、过氧化物酶，都是自由基清除剂，它们像清道夫一样，能把人体内的"垃圾"打扫的一干二净。

Phenolic compounds are very basilic chemical raw material, have a wide range of application.

酚类化合物是重要的化工原料，其应用非常广泛。

In the earlier stage, hydroxyl radical does not attack benzene ring to produce phenolic compounds.

在氧化反应初期，OH自由基不直接攻击苯环而形成酚类物质。

The effect of dissociation on the photolysis should be mainly attributed to the formation of the negative oxygen ions,which led to the changes of the activities of benzene ring and substituent groups.

解离对酚类物质降解规律的影响主要是通过氧负离子的形成，改变苯环以及其他取代基团的活性而造成的。

The four carbamates were hydrolyzed in alkalescent aqueous solutions, resulting in the formation of 2-sec-butylphenol, 2-isopropylphenol, m-cresol and α-naphthol, which could be determined by amperometry after capillary electrophoretic separation.

用毛细管电泳-安培检测法测得酚类化合物的量，然后分别换算为等当量的氨基甲酸酯类农药的量，从而建立了用毛细管电泳-安培检测法检测所选四种农药残留的方法。

They are rich in flavonoids and phenolics by their own nature.

他们有丰富的黄酮类化合物和酚类物质由他们自己的性质。

In part two, dibenzoxanthene (2~7, 14~16), the oxidation products of naphthols, were found to be of notable anti-tumor activity to several kinds of tumor and relatively lower toxicity to normal tissue, which implied a promising application for new anti-tumor drugs.

在第二部分，体外抗肿瘤活性实验结果显示，萘酚类化合物的氧化产物中，二苯并咕吨类化合物（2~7，14~16）对多种肿瘤细胞具有较显著的细胞毒性和相对较低的正常细胞毒性，具有良好的抗肿瘤新药开发前景。

The results indicated that phenols were the pollutants with high toxicity, in which pentachlorophenol had the highest toxicity in all these tested chemicals.

研究结果表明，在3类12种有机污染物中，卤代酚类物质对水生生物的毒性最强，其中五氯苯酚对水生生物具有极高毒性。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。