查询词典 compounds

The invention belongs to the technical field of organic chemistry, in particular to a benzothiazole compounds and a preparation method for the compounds.

本发明属于有机化学技术领域，具体为一种苯并噻嗪类化合物及其制备方法。

In this thesis, two series compounds of thiadiazole (2a~2f) and benzothiazole (5a~5f) were synthesized by using the reagent of iodobenzene diacetate. We also bound the iodobenzene diacetate reagent to the resin and applied it to synthesize thiadiazole and benzothiazole compounds.

本文利用二醋酸碘苯试剂分别与1-芳甲酰基-5-芳基-2-硫代缩二脲及1-芳甲酰基-3-芳基硫脲反应合成了噻二唑(2a~2f)和苯并噻唑(5a~5i)两个系列的杂环衍生物，并通过把二醋酸碘苯负载在高分子上合成了一类新型的固相氧化剂，同时考查了该固相氧化剂在噻二唑，苯并噻唑类化合物合成中的应用以及该固相氧化剂的循环使用。

The sulfur compounds in VGO of SCO are mainly C3～7-dibenzothiophene,while those in FCC liquid products are short chain dibenzothiophene and a few alkylated benzothiophene and alkylated thiophene,and the percentages of these three sulfur compounds are 82.04%,13.42% and 0.56%,respectively,and they are difficult to be removed by hydrogenation.

结果表明，所含硫化物主要是C3~7-二苯并噻吩，而催化裂化反应后则以短侧链二苯并噻吩为主，还含少量烷基苯并噻吩和烷基噻吩，三者的质量分数分别为82.04%、13.42%和0.56%，均属于难以加氢脱除的含硫化合物。

This paper studied the catalytic transformation performances of hydrocarbon model compounds (such as n-Hexane,cyclohexane,1-Hexene) and sulfur-containing model compounds (such as thiophene,3-methylthiophene and benzothiophene) on ZSM-5 catalysts.

以正己烷、环己烷、1-己烯3种烃类和噻吩、3-甲基噻吩和苯并噻吩三种硫化物为模型化合物，考察了烃及含硫模型化合物在ZSM-5分子筛催化剂上的催化转化性能。

Chapter VI: Nineteen novel ligands containg triazole and benzotriazole are designed and synthesized. Although we did not get the single crystal of complexes, we get five single crystals of compounds and test the biological activity of all the compounds.

第六章：设计、合成并表征了两个系列共19个新型的三氮唑配体，虽然没有得到配合物的单晶，但是我们得到了其中5个化合物的单晶，并初步测试了所有化合物的生物活性。

Moreover,the selective oxidation of primary and secondary alcohols to corresponding carbonyl compounds with the multinuclear copper complexes Cul-Cu4 as catalysts have been conducted using TBHP and O_2/TEMPO,respectively.Among them,the copper complex Cu3 showed the best performance.On the performances of the two classes of oxidants,benzylic and heterocyclic alcohols could be effectively oxidized to carbonyl compounds.Specifically,the secondary alcohols could be effectively oxidized to ketones with excellent selectivity up to 100%in the presence of TBHP and the allylic alcohols could be effectively oxidized to aldehydes in the presence of O_2/TEMPO system.

实验结果还表明，在TBHP或O_2/TEMPO存在下，各配合物催化剂均能使各种取代芳香伯/仲醇以及杂环醇等以不同程度的转化率和选择性转化成相应的醛或酮，其中，配合物Cu3在O_2/TEMPO存在下可使苯甲醇和烯丙醇等以较高转化率和近100%的选择性转化成相应的醛，而对其它芳香醇和脂肪伯/仲醇等的催化性能则较差；在TBHP存在下，配合物Cu3则可使1-苯乙醇和其它仲醇以较高转化率和近100%的选择性转化为相应的酮，但对各类其它伯醇选择氧化的性能相对较差。

Although these inhibitors including 19 compounds of benzylidene malononitrile family and 13 compounds of 3-substituted indolin-2-ones family, possess quite different structures,a common pharmacophore model with very good stratistical results was determined.

尽管亚苄基丙二腈化合物和3-取代吲哚啉-2-酮系列化合物具有完全不同的骨架结构，但得到的药效团却具有共同的特性，这表明当这两类抑制剂和受体发生相互作用时，采用了相似的结合模式。

In addition ,nine new O,O-dialkyl-[α-(1,3,4,6-tetraacetyl-2-deoxy-β-D-glucoamino)-p-methyl benzlidene] phosphonatesand eight O,O-dialkyl-α-(2-deoxy-D-glucoamino)-p-methyl benzylidene phosphonates were prepared. The 〓 and〓 spectra of Ⅰ-Ⅴ compounds indicated clearly that each of Ⅰ-Ⅴ compounds contains two diastereo-isomers.

我们对非对映异构体的分离方法进行了研究，并分离得到了五个单一构型的异构体〓、〓、〓、〓和〓，培养出了〓、〓和〓三个异构体的单晶，通过X-射线衍射分析，确定了〓、〓和〓三个异构体的绝对构型，反应过程中引入的手性原子的构型均为R构型。

The crystal structures have been determined by single-crystal X-ray diffraction.Cadmium atoms in compounds 1 and 2 show an eight-coordinated distorted square-antiprismatic geometry and a seven-coordinated distorted pentagonal bipyramidal geometryrespectively. Copper atoms in compounds 3 and 4 show a six-coordinated distorted threeprismatic geometry and a four-coordinated distorted tetrahedral geometry respectively.

所有配合物的晶体结构都通过单晶X-射线衍射确定：配合物1中的镉离子周围显示八配位的扭曲四方反棱柱构型；而配合物2中的镉离子周围显示七配位的扭曲五角双锥构型；配合物3中的铜离子周围显示六配位的扭曲三棱柱构型；配合物4中的铜离子周围显示四配位的扭曲四面体构型；配合物5中的锌离子周围显示六配位的扭曲八面体构型。

As a result, four compounds were obtained from Caesalpinia Sappan L. by four processes. Two compounds were hydroxybenzene and one compound was hydroximic acid.

结果表明，经过四个步骤分离，得到4种纯物质，其中两种为酚类化合物，一种为羟肟酸。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。