pyrrole

On the one hand, the combination of the downward gravity force from the toluene solution of pyrrole and its upward buoyancy force drives the toluene solution of pyrrole to collapse downwards and scatter outwards on water surface.

一方面，由于向下的重力作用和向上的浮力作用，在水表面的甲苯溶解的吡咯溶液向下向外扩散。

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Method ( 2H)-2-cyclohexyl-3,4-dihydropyrrolo [ 1,2-a] pyrazin-1-one was synthesized from methyl pyrrole-2-carboxylate via substitution and cyclization, and the target compounds 6-aryl derivatives were obtained by Friedel-Crafts reaction.

方法以2-吡咯甲酸甲酯为原料，经取代、环合，制备（2H）-2-环己基-3,4-二氢吡咯[1,2-a]吡嗪-1-酮（3）；通过Friedel-Crafts酰基化反应，制得其6-酰基衍生物4a~4j。

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Polypyrrole films have been electrochemically synthesized by direct oxidative polymerization of pyrrole in acetonitrile containing tetrabutylammonium tetrafluoroborate as supporting electrolyte. We characterized the as-grown polypyrrole films by resonance Raman spectroscopy in the temperature scale of-195 to 150 ℃.

在含有四氟化硼四丁基铵的乙氰溶液中电化学氧化吡咯制得聚吡咯膜，并在-195到150℃温度范围内研究了该聚合物膜的变温拉曼光谱。

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Pyrrole and Benzaldehyde react with acid catalysis to form the cyclic intermediate 3 ( Tetraphenylporphyrinogen). 3 is converted irreversibly to the TPPH_2 and TPC.

吡咯、苯甲醛在酸催化下生成环状中间体，不可逆的转化生成TPPH2与TPC；

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It can be synthesized with the material of lovastatin, hydroxy protecting agent of trimethylchlorosilane, and t-butyl lithium instead of pyrrole lithium. The total yield is about 78%.

以洛伐他汀为原料，三甲基氯硅烷为羟基保护基，用活泼的强亲核试剂叔丁基锂代替当前的吡咯烷锂合成了目标产物新伐他汀，总收率达78%。

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an investigation on nano-ni catalytic hydrogenation of pyrrole and its derivatives at normal temperature and pressure

常温常压下吡咯及其衍生物的镍催化加氢反应考察

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Pyrrole was polymerized on alkanethiol self-assembledmonolayers modified gold electrodes through electrochemical method.

用电化学聚合法在多种烷基硫醇自组装膜修饰金电极上制备了聚吡咯.

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Such is the case in pyrrole, thiophene, and furan.

吡咯, 噻酚和呋喃的情况就是这样.

词典精选例句

Electrochemical polymerization of pyrrole on brass in sodium tetraborate solution

硼砂水溶液中吡咯在黄铜电极上的聚合

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These receptors include bridged dipyrrole ansa-ferrocene, bipyrrole-based catenanes , guanidinium-appended amidopyrroles, 2,5-diamidopyrroles and pyrrole-2,5-diacetamides.

这些阴离子受体包括桥联二吡咯柄型二茂铁 、 基于联吡咯的索烃、附加有离子基团的吡咯酰胺、吡咯-2, 5- 二甲酰胺和吡咯 -2,5-二乙酰胺.

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peak of decene is the highest in the chromatogram. another compounds are detected such as pyrrole, furanmethanol, indole and guanosine .

组分含量最多的是十碳烯烃，同时还检出了一些含氮化合物吡咯、呋喃、吲哚、鸟甙等。

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Investigation of Polymerization of Pyrrole by Atmospheric Dielectric Barrier Discharge

常压介质阻挡放电聚合聚吡咯的研究

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A series of six porphyrin monomers were synthesized by direct condensation of heliotropin, hydroxyl substituted aromatic aldehyde and pyrrole. Structures of the target compounds were characterized by MS,~ 1HNMR, IR, and UV-vis spectra.

以胡椒醛及羟基芳香醛为原料与吡咯在丙酸中回流，合成了6种卟啉化合物，其结构用1HNMR，IR，UV-Vis和ESI-MS确定。

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