苯环

研究表明，苯环与支链N原子及它们间的距离对于这些化合物的活性有重要影响，而且立体场与静电场对其药效均起作用。

The benzene ring and side chain nitrogen atom and the distance between them have important influence on the activities of these compounds as well as steric field and electrostatic effect .

多环芳烃（polycyclicaromatichydrocarbons，简称PAHs）是一类含有两个或两个以上的苯环以稠环的形式连接一起形成的一类有机化合物，它是苯及苯系物的衍生物。

Organic compounds containing two or more of the benzene ring linked to a class of compounds known as polycyclic aromatic hydrocarbons ( PAHs ) .

苯环型烃都是非经典烃，因此，可能是芳香烃。

The benzenoid hydrocarbon are all nonclassical and , thus potentially aromatic .

某些苯代（或多苯）环氧乙烷是制取带苯环（或二苯）碳烯的极好原料

Phenyl ( or polyphenyl ) substituted epoxides serve as excellent precursors to phenyl ( or diphenyl ) carbenes .

OH主要加成到甲基橙的偶氮键和带甲氨基的苯环上，形成相应的加成物；

OH radicals mainly attack the azo group and the aryl ring bearing methylamino group , forming corresponding OH-adducts .

苯丙烯酸及其苯环对位氯取代衍生物的NMR和IR光谱学研究

NMR and IR spectroscopic study of phenyl propenoic acid and its derivative p-cl-phenyl propenoic acid

煤中苯环上的CH键也参与了氧化反应。

C-H bond in aromatic ring took part in the oxidation reaction either .

苯环上取代基的Hammettσ常数和立体参数（MR）可以明显改进相关关系。

Hammett σ constants and steric parameter ( MR ) of the substituents can significantly improve the correlations .

另外，随着苯环数的增加，土壤中15种PAHs的平均降解率逐渐降低。

In addition , the average PAHs degradation gradually reduced with the increase of the PAHs rings .

苯环各碳原子Ci的化学位移δi与其净电荷Qi值基本呈线性关系。

Linear relationship between the values of the chemical shift and net charges of the carbon atoms is investigated among these compounds .

结论：苯环利定受体可能参与了SHR的发病过程。

CONCLUSION : Phe receptors might be involved in the genesis of SHR hypertension .

苯环上的取代基团X对分子离子和一些碎片离子的强度有明显的影响：随X电负性的增强，相应离子的强度下降。

The intensity of molecular ions and some fragment ions of all compounds ( 1 ~ 25 ) was closely related to the electronic nature of substituted group X.

PET分子结构的酯基和苯环形成共轭体系，增加了分子链的刚性，性能十分优异。

Conjugated system was formed by ester and benzene of PET molecular structure , so , molecular chain rigidity was promoted and performance was very excellent .

光催化过程中pH的降低表明反应过程中有羧酸类的中间产物产生，表明苯环被打断。

The lowering down pH during photocatalytic degradation showed that some carboxylic acid type intermediate products were generated during the reaction , which indicates the break of benzene rings .

聚合物的IR和NMR谱图表明酶催化聚合席夫碱主要是通过苯环的邻位连接。

FTIR and NMR spectra of the polymer synthesized indicated that the polymerization by this enzyme catalyzed reaction is by ortho substitution on the ring .

颜料颜色的深浅和λmax与苯环上取代基的性质、位置密切相关。

In additional , the pigment 's color and λ max is related to the properties and position of substituting group on benzene ring .

而在PS单分子链球中只有15%苯环的松弛时间为3.9s。

However , in the system formed by PS single chain spheres , only 15 % benzene rings with a relaxation time of 3.9 second .

结果表明，在代谢过程中，GA（15：1）的苯环结构上没有发生改变，氧化主要发生在C6位的烷基侧链上。

The result showed that the benzene ring remained unchanged and the oxidations occurred at the side alkyl chain in rat liver microsomes .

多环芳烃（PAHs）是一类分子结构中含有两个或两个以上苯环的碳氢化合物的总称。

Polycyclic aromatic hydrocarbons ( PAHs ) is a kind of hydrocarbons , its molecular structure contains two or more aromatic rings .

聚2,6-萘二甲酸乙二醇酯（PEN），一种新型性能优良的聚酯材料，其结构与聚对苯二甲酸乙二醇酯（PET）相似，PEN是以萘环取代了PET中的苯环。

Polyethylene naphthalene-2,6-dicarboxylate is an excellent new polyester material . Its structure is similar to Polyethylene ethylene terephthalate , except in PEN a naphthalene circle was substituted by benzene .

苯环取代肉核酸心肌摄~（86）Rb和抗急性低压缺氧活性的判别分析

Structure-activity studies on myocardial ~ ( 86 ) rb uptake and tolerance to oxygen deficit of 22 substituted cinnamic acids by stepwise discriminant analysis

稠环芳烃（polycyclicaromatichydrocarbons，PAHs）是一类由两个或两个以上苯环彼此共用两个相邻的碳原子连接起来的化合物。

Polycyclic aromatic hydrocarbons ( PAHs ) are a sort of hydrocarbons that have two or more phenyls by sharing two contiguous carbon atoms at their molecular structures .

聚合物假冠醚研究（VI）以苯环为端基的[2,2,2]开链穴醚及其酚醛型聚合物的合成与吸附性能

STUDIES ON POLYMER PSEUDO CROWN ETHER ( VI ) Synthesis and Adsorption Properties of [ 2,2,2 ] - Open Chain Cryptand Containing end group Phenyl and Its Phenolic Polymers

计算多环苯型芳烃共振能的新方法&苯环计数（BRC）法

A New Method for Calculation RE of Polycyclic Benzenoid Hydrocarbon s : BRC Method

FTIR和XPS分析表明，在纯氮气气氛中，脂肪族酯键发生断裂，在凝聚态生成更多的苯环。

FTIR and XPS data indicated that the cleavage of aliphatic ester bonds took place mainly under pure nitrogen , and more aromatic rings remained in the condensed phase .

相反，在C-H键活化机理中，所有驻点中的苯环均保持反芳香性。

In contrast , the benzene ring exhibits anti-aromaticity in the stationary points of the C-H bond activation mechanism .

当·OH自由基攻击脂肪链时形成一些芳香类中间产物，并进一步通过苯环破裂形成脂肪化合物如甲酸，乙酸和乙醛的反应等。

Some aromatic products were formed after the aliphatic chain was attacked by hydroxyl radical , and then were broken up into fatty compounds through the benzene ring , such as formic acid , acetic acid and acetaldehyde .

发现随着苯环在烷基链上连接位置由2变化到8，CMC增大，γCMC降低。

It is found that CMC increases as benzene ring shifts from position 2 to 8 and γ _ ( CMC ) decreases at the same time .

由于PAHs的毒性随其所含的苯环数的增加而增强，高分子量的PAHs的微生物降解引起越来越多的学者的关注。

As the more benzene rings the PAHs have the more toxic they are , microbial degradation of high molecular weight PAHs caused more and more attention of scholars .

作者观察了苯环利定（PCP）注入大鼠静脉内可以造成急性心肌损害的心电图变化，即T波明显抬高；

The present study was designed to observe changes of electrocardiogram ( ECG ) of acute heart injury induced by intravenous phencyclidine ( PCP ) .