series of compounds

After water treatment, the concentration of methylphenanthrene in Daqing terrestrial facies oil keeps stable relatively, the concentration of dimethylphenanthrene is appreciably increasing, and that of phenanthrene and the series compounds of naphthalene decrease in different pitch.

在水的作用下，大庆陆相原油中的甲基菲浓度保持相对稳定，二甲基菲的浓度略显升高，菲及萘系列化合物的浓度有不同程度降低。

Objective: Screening test of a series of amino acid methyl ester and ethyl ester compounds in order to offer material for synthesis of Schiff s base.

前言：目的：设计合成一系列氨基酸酯为合成席夫碱提供原料。

A series of azo hydroxyporphyrin-oxadiazole compounds were synthesized and characterized by 1 HNMR, FAB-MS, IR and UV-Vis spectra.

合成了系列偶氮羟基卟啉-?f二 唑化合物,通过1HNMR, FAB-MS, IR,UV-Vis确定了化合物的结构.

It is evident from these data that the crystal structure determines the frequency position, and clearly shows the effect of the lanthanide contraction in this series of compounds.

这些数据表明振动频率取决于晶体结构并揭示了镧系收缩效应对振动频率的规律性影响。

PVC extender resins are a series of polymer compounds.

聚氯乙烯(PVC)掺混树脂是一类多品种系列化产品.

When alkali is added to such compounds a series of proton dissociations occurs.

当碱加到这类化合物中，将发生一系列质子离解作用。

A series of novel liquid crystalline aromatic carboxylic acid compounds are synthesized.

合成了一系列新的液晶性芳香羧酸化合物.

Secondly, the compounds were synthesized by a two-step chemical synthesis. The first step was the synthesis of a series of different substituted chalcone compounds, then grafted with thiosemicarbazide to form the target product.

其次分两步进行化学合成，第一步合成一系列不同取代的查尔酮化合物，第二步再与氨基硫脲接枝形成目标产物。

Chapter 3: The synthesized target compounds were a series of light reaction test results show that the precursors of photochemical photochemical reaction of 10 occurred.

第三部分：对所合成的目标化合物进行了一系列光照反应测试，结果表明光化学前体10发生了光化学反应。

A series of 35 analogues of'α-chlorohydrin have been screened, further work is still in progress in order to find compounds superior to the parent substance.

此外，还筛选了35个α-氯丙二醇衍生物，工作有待继续以发现抗生育作用更佳的化合物。

A series of α,β unsaturated ketones and esters have been synthesized by Knoevenagel reaction of aldehyde with carbonyl compounds which have active methylene group in the presence of tellurium(ⅳ) chloride in excellent yields.

用TeCl4催化含有活泼亚甲基的羰基化合物与醛的Knoevenagel反应，合成了一系列α，β－不饱和酮或酯，收率最高达95%。