查询词典 aliphatic

The study found gaseous aliphatic aldehydes , which are carcinogenic and mutagenic, in incense smoke.

研究证明香烟中的气态的〈化〉脂肪族的醛，乙醛，是致癌物和诱导有机体突变的物质。

In addition to the multi-ring alkenyl ethers and alpha-fluorinated acrylates, additional monomers comprising one or more cyclic aliphatic and heterocyclic compounds, both unsubstituted and substituted, in particular dihydropyrans, may be incorporated into the photosensitive polymers.

除了多环烯基醚和α-氟化丙烯酸酯之外，可向所述光敏聚合物引入另外的单体，所述单体包括一种或多种未取代的和取代的环状脂肪族化合物和杂环化合物，特别是二氢吡喃。

Reduction of 2-bromodifluoromethyl substituted propargyl vinyl ether afforded the difluorovinyl propargyl ether, which rearranged to the corresponding allene bearing a gem-difluoromethene in the mid-aliphatic chain.

第三部分，在碱性条件下，α-氟烷基乙酸乙酯与炔丙醇反应制备了一系列的氟烷基取代的炔丙基烯基醚，并研究了它的Claisen重排反应，得到了2，4-不饱和的氟烷基酮。

In this system, the allylation was selectively toward aldehyde in the presence of ketone; the allylation squinted toward aliphatic aldehyde in the presence of aromatic aldehyde.

该方法不仅对于醛和酮具有很高的化学选择性，而且对于芳香醛和脂肪醛也有很好的选择性，当存在芳香醛时，脂肪醛优先发生烯丙基化反应。

Four anthryl lower aliphatic amine derivatives were synthesized, and DNA binding properties of these compounds were investigated by fluorescence and absorption spectra.

蒽的低级脂肪胺衍生物水溶性很好，不宜固定于PVC膜中，但它们可与核酸分子相互作用，其荧光光谱和吸收光谱发生明显变化。对于不同脂肪胺的衍生物，其作用结果不同。

The system exhibits favorable catalytic activity for the oxidation of benzylic and allylic alcohols, in spite of low activity observed for the oxidation of heterocyclic and aliphatic alcohols.

探讨了TEMPO-IL/CuCl催化体系的催化机理，铜离子是反应的活性中心。针对 TEMPO/CuCl 催化体系反应速度较慢的问题，研究了碱对 TEMPO/CuCl 体系的促进作用。

Various alcohols are tolerable under the present conditions including benzylic alcohols,allylic alcohols as well as simple aliphatic alcohols.

醇的范围非常广，二苯甲醇、1-苯乙醇、烯丙醇衍生物等含苄醇结构的地物能够以最高接近定量的产率得到产物。普通烷基醇如环己醇，甚至最简单的甲醇和乙醇也能顺利反应，产率中等。

Various alcohols are tolerable under the present conditions including benzylic alcohols,allylic alcohols as well as simple aliphatic alcohols.

普通烷基醇如环己醇，甚至最简单的甲醇和乙醇也能顺利反应，产率中等。在这个反应中，磷钨酸能够顺利回收，并在此被用于催化反应，活性没有降低。

Afterintroduction of basic electroluminescent theory of polymers and discussion of the studysituation of electroluminescent polymers and polyphenylene vinylene particularly, therelationship among structure, solubility and electroluminescent properties was studiedIn this paper, polyether-type PPV, polythioether-type PPV, and PPV containingoxadizole, biphenylene, or saturated aliphatic unit were synthesized, the monomers andpolymers were characterized as well.

在讨论了电致发光聚合物的基本发光原理并深入地分析了国内外有机电致发光聚合物尤其是聚苯撑乙烯的研究现状与发展趋势的基础上，论文着重研究了PPV衍生物的结构与它的可溶性以及电致发光特性的关系。

And the exciplex formation which was occurred in excited state in aliphatic amine systems will not affect the ATRP process as serious as salt formation in the system of bipyridyl.

而脂肪胺体系生成的激基复合物由于发生于激发态，因此它就不像联吡啶的成盐反应哪样，会严重影响反应进行，导致ATRP效率的降低。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。