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With Zn〓 used as an internal standard, the contents of Ni, Co, Cu in real mineral samples were determined successfully in the imidazole or phenylamine systems.

以Zn〓作内标,采用内标标准曲线法分别在咪唑和苯甲胺缓冲液体系中对镍矿样中Ni,Co,Cu的含量进行了测定。

In Chapter 3, the separation of Fe〓, Co〓, Ni〓, Zn〓, Cu〓 by CE in the presence of imidazole or phenylamine as UV-absorbing background electrolyte and α-hydroxybutyric acid as the complexing agent with indirect UV absorbance was investigated.

在第三章,研究了以咪唑或苯甲胺为背景吸收电解质,α-羟基异丁酸为络合剂,采用毛细管离子电泳间接紫外法测定了镍矿石中Ni,Co,Cu的含量。

Third, we studied the N-alkylation of phthalimide, indole, benzimidazole, succinimide with a variety of halogen in ionic liquid [BF4], [PF_6]. The present method has many obvious advantages, compared to those reported in the literature, including the generality, simplicity of the methodology, the ease of product isolation, the higher yield and potential for recycling of ionic liquids.

第三、研究了离子液体[BF_4]、[PF_6]和BF_4促进邻苯二甲酰亚胺、吲哚、苯并咪唑、丁二酰亚胺的N-烷基化反应,克服了传统溶剂中进行N-烷基化反应要求强碱、反应条件苛刻、时间长、产率一般的不足,改善了反应条件、提高了产率。

A series of 2-substituted benzimidazoles were synthesized by the reaction of o-phenylenediamine with corresponding acid in polyphosphoric acid under microwave. 11 Compounds were synthesized in this way first time.

以邻苯二胺及相应的羧酸为原料,微波辐射下,合成了18种2-取代苯并咪唑衍生物,其中11种化合物的微波合成未见文献报道,研究并优化了反应条件。

Eight kinds of 2-benzimidazolylalkylene derivatives in polyphosphoric acidhave been synthesized by multi-power bands microwave irradiation technique,starting from corresponding cinnamic acid compounds and they were characterized by~1H NMR,(~13C NMR and MS respectively.

以8种肉桂酸衍生物和邻苯二胺为原料,在多聚磷酸中,采用分段式微波辐射方法合成了8种2-苯并咪唑基烯烃衍生物,并通过1H NMR、13C NMR和MS进行了表征。

Three kinds of ionic liquid were used to support the acetylacetone at the C3 position directly according to the method indicated above. These synthesized ionic liquid supported acetylacetone catalysts include imidazolium salts ionic liquid supported acetylacetone catalysts, pyridinium salts ionic liquid supported acetylacetone catalysts and ammonium salts ionic liquid supported acetylacetone catalysts. All these catalysts were characterized by ~1H-NMR,~(13)C-NMR, IR and elementary analysis.

采用设计过程中预期能够提高乙酰丙酮金属催化剂催化氧化活性的修饰方式,合成了三类离子液体支载的乙酰丙酮金属催化剂:咪唑型离子液体支载乙酰丙酮金属催化剂、吡啶型离子液体支载乙酰丙酮金属催化剂、胺型离子液体支载乙酰丙酮金属催化剂,并采用核磁共振氢谱、碳谱,红外光谱及元素分析来对这些新型的催化剂进行了表征。

The X-ray crystal structure analysis of the complexes shows that all lanthanidecomplexes exhibit a tripodal ligand coordination mode, with three imino nitrogenfrom benzimidazolyl and pyridyl group, and one amino nitrogen atoms as donors.The ligands show two kinds of configuration: the fan-like and the pincer-like. Bothintra- and intermolecular π-π interactions are found in these complexes.

晶体结果表明,在所有的稀土配合物中,三脚架配体均用三个支脚上的苯并咪唑、吡啶环氮原子及一个顶端的氮原子和稀土离子进行配位,表现出三脚架式配位方式,同时,三脚架配体有风扇形及钳子形两种空间配位构型,并形成了分子内及分子间的π-π堆积作用。

Organocatalyst ; N-methylimidazole ; aromatic aldehyde ; multi-component reaction ; Knoevenagel condensation reaction ; ionic liquid rhodanine ; decahydroacridine

广东省自然科学基金;国家自然科学基金有机小分子催化剂; 1-甲基咪唑;芳香醛;多组分反应; Knoevenagel缩合反应;离子液体;罗丹宁;多氢吖啶

The dependence of the radiolabeling yield of ~99mTcO-NIET and 99mTcN-NIET on pH, temperature, ligand concentration, the amount of added stannous chloride, and so on was screened by the normal procedure.

合成了一种新的氨荒酸类化合物,2-(4-硝基咪唑)-乙基二硫代氨基甲酸钾,研究了影响99mTcO-NIET以及99mTcN-NIET标记率的相关因素。

This invention discloses super molecule plant layer 2-benzene group benzimidazole-5 sulfonic acid and its preparation method and application.

本发明提供了一种超分子插层2-苯基苯并咪唑-5-磺酸及其制备方法与用途。

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