芳香化合物

Ce2(SO4)3 was used as an inexpensive and effective catalyst for the Friedel-Crafts alkylation of aromatic compounds with benzyl alcohol s, allyl alcohols and benzyl chlorides.

硫酸亚铈作为一种便宜的和有效的催化剂催化芳香化合物与苄基醇、烯丙醇类化合物和苄基氯的傅-克烷基化反应。

Ce2(SO4)3 was used as an inexpensive and effective catalyst for the Friedel-Crafts alkylation of aromatic compounds with benzyl alcohols, allyl alcohol s and benzyl chlorides.

硫酸亚铈作为一种便宜的和有效的催化剂催化芳香化合物与苄基醇、烯丙醇类化合物和苄基氯的傅-克烷基化反应。

This offers an efficient synthetic way to this kind of aromatic acids.

这为合成此类取代模式的芳香化合物提供了一条新颖的路线。

Furthermore, the relative energies and other properties of these substances have been studied with the bond angle ranging from 90° to 180° at fixed bond length at the same level. From the results obtained, the occurrence possibili...

进而研究了当键角在90°-180°之间变化时，这些相关物质能量的变化规律，由此探讨了不同硝化机理发生的可能性，为以后进一步研究不同结构与活性的芳香化合物的硝化反应机理提供依据。

Based on LSER method, the relationship between the acute toxicity of 26 substituted aromatic compounds on Photobacterium phosphoreum, Daphnia magna and fathead minnow and their theoritical solvatochromic parameters, the high correlation were found, it provided an example to introduce the quantum chemical parameters into QSAR study.

以线性溶剂化能相关理论为基础，利用理论溶剂化参数分析了26种取代芳香化合物对呆鲦鱼、发光菌和大型蚤的急性毒性，为成功地将量子化学参数引入QSAR研究探寻了一条新路。

The effect of various conditions on the reaction, such as solvent, temperature, the amount of catalysts,the concentration of hydrochloric acid, the amount of hydrochloric acid, oxygen/air and so on, was studied.

在此基础上，系统地考察了溶剂、温度、催化剂各组分的用量、盐酸的浓度、盐酸的用量、氧气/空气等因素对芳香化合物氧化氯化反应的影响。

The paramagnetism of 4-1 and 4-2 is unprecedented in thechemistry of transition-metal-containing aromatic compounds.

化合物4-1和4-2具有顺磁性，这在其他金属杂芳香化合物的研究中未见报道。

According to Wurtz reaction, if we can control solvothermal reactive condition to make the four C-Cl bonds in the carbon tetrachloride broken incompletely, according to the mechanism of Wurtz reaction, some kinds of free radicals or carbonium ions will be produced in solvothermal condition.

那么，如果控制反应条件，使四氯化碳等小分子碳氯化合物中的氯原子不完全脱掉，根据Wurtz反应机理，反应体系中将产生大量的碳氯自由基或碳正离子，它们在溶剂热条件下按照一定的生长规律进行组合，必将生成大量的多氯代多环芳香化合物。

However,the enzymes and other compounds in your mouth and saliva alter some of a wine's aromatic compounds,By aspirating through the wine,you are looking for any new aromas liberated by the wine's interaction with the environment of your mouth.

然而，嘴里和唾液中的酶和其他化合物会改变酒中的一些芳香化合物。通过穿过酒来呼吸，你可以寻找酒与口腔环境相互作用所释放出的任何新的香味。

With the oxidative rate of four aromatic compounds catalyzed by SLO under different conditions, the inhibitive rate and the 50% inhibitory concentration of these antioxidants for the oxidations were calculated, respectively.

根据不同条件下SLO对四种芳香化合物氧化的速度，计算出各调节物对SLO介导这类化合物氧化的抑制率及半数抑制浓度。

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。