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The method is presented as follows: firstly, potassium phthalimide is synthesized by phthalimide reacting with potassium hydroxide at the room temperature.

该法先在室温条件下以邻苯二甲酰亚胺与氢氧化钾反应合成了邻苯二甲酰亚胺钾。

Afterwards, N-(6-chloro-3-pyridinemethyl) phthalimide is prepared by using potassium phthalimide, as nucleophilic reagent, condensation reacting with 2-chloro-5-methylpyridine at a temperature of 70℃.

然后在70℃条件下,以邻苯二甲酸亚胺钾作为亲核试剂,与2-氯-5-氯甲基吡啶发生缩合反应,制备了N-(6-氯-3-吡啶甲基)邻苯二甲酰亚胺。

Their structures were characterized by IR, 1H NMR, of which 4-chloro- 2-methyl-7-(2-bromoethoxy) isoflavone, 2, 4\'-dimethyl-7-(2-bromo-ethoxy)isoflavone and 2-methyl-7-(2-bromoethoxy) isoflavone are rarely reported so far.4\'-chloro-2-methyl-7-(3-bromopropoxy)isoflavone, 2, 4\'-dimethyl-7-(3-bromo- propoxy) isoflavone, 2-methyl-7-(3-bromopropoxy) isoflavone, 4\'-methoxy-2-methyl-7-(3-bromopropoxy) isoflavone and 4\'-hydroxy-2-methyl-7-(3-bromopropoxy) isoflavone were gained by reacting 7-hydroxy-2-methyl isoflavone derivatives with 1, 3-dibromo- propane, respectively.

第三章(来源:73ABC论文网www.abclunwen.com)在丙酮溶液中以K_2CO_3为碱,使溴乙氧基异黄酮和溴丙氧基异黄酮与咪唑偶合,以较高的产率合成出10种目标化合物:2-甲基-4′-氯-7-2-(1-咪唑基乙氧基异黄酮、2,4′-二甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-甲氧基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-羟基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-氯-7-3-(1-咪唑基丙氧基异黄酮、2,4′-二甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-甲氧基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-羟基-7-3-(1-咪唑基丙氧基异黄酮,经IR、~1H NMR、~(13)C NMR、元素分析等对其结构进行了表征,10种目标产物均未见文(来源:ABC论文cccccc网www.abclunwen.com)献报道。

In this paper, firstly using natural fatty acids including lauric acid, myristic acid, palmitic acid etc. and disproportionated rosin as starting materials, the acyl reaction of starting materials with SOCl_2 respectively, and then using Schotten-Baumann condensation: on the reaction conditions of alkalescence, condensation of acylchloride with amino acid (sarcosine, glycine, alanine etc.), and then acidification, saltation. A series of anionic surfactants of N-acyl amino: sodium N-fatty acyl sarcosinate (SFS-12, SFS-14, SFS-16); sodiun N-fatty acyl glycinate(SFG-12, SFG-14, SFG-16); sodium N-fatty acyl alaninate(SFA-12, SFA-14, SFA-16)and sodium N-disproportionated rosinoyl aminatewere prepared. During the preparation of N-acylamino acid, the reaction conditions of acylchloride with amino acid condensation were identified by optimizing the synthetic conditions of N-lauroyl sarcosine: mol ratio of amino acid to acylchloride 2:1, reaction taken place in a solvent composed by acetone/water 2:1, acylchloride and 20% NaOH were slowly added to the reaction mixture at the same time while maintaining the pH at 9~10, after completion of adding maintaining reacting for 2.5h at 25℃.

首先以月桂酸、肉豆蔻酸、棕榈酸等天然脂肪酸和歧化松香为原料,与氯化亚砜反应制得酰氯,然后采用Schotten-Baumann 缩合法路线,即在碱性条件下,酰氯和氨基酸(肌氨酸、甘氨酸、丙氨酸等)缩合,经过酸化、成盐,合成一系列氨基酸型阴离子表面活性剂:脂肪酰肌氨酸钠,即月桂酰肌氨酸钠(SFS-12)、肉豆蔻酰肌氨酸钠(SFS-14)、棕榈酰肌氨酸钠(SFS-16);脂肪酰甘氨酸钠,即月桂酰甘氨酸钠(SFG-12)、肉豆蔻酰甘氨酸钠(SFG-14)、棕榈酰甘氨酸钠(SFG-16);脂肪酰丙氨酸钠,即月桂酰丙氨酸钠(SFA-12)、肉豆蔻酰丙氨酸钠(SFA-14)、棕榈酰丙氨酸钠(SFA-16);N-歧化松香酰基氨基酸钠(sodium N-disproportionated rosinoyl aminate),即N-歧化松香酰基肌氨酸钠(sodium N-disproportionated rosinoyl sarcosinate ,简称SDRS)、N-歧化松香酰基甘氨酸钠(sodium N-disproportionated rosinoyl glycinate,简称SDRG)、N-歧化松香酰基丙氨酸钠(sodium N-disproportionated rosinoyl alaninate,简称SDRA)。

The method comprises: reacting semicarbazide and terephthalaldhydic acid under stirring, and monitoring the end point with silica gel thin layer chromatography to obtain terephthalaldhydic acid semicarbazone.

本发明以氨基脲为原料,在搅拌下与对醛基苯甲酸反应,用硅胶薄层层析法监测反应终点,合成氨基脲缩对醛基苯甲酸。

The composite amino acids of pupa protein was prepared by the method of enzymatic-acid hydrolysis. N-stearyl composite amino acids is synthesized by the synthesis reaction of stearyl chloride reacting with composite amino acids.

以蚕蛹为原料,采用酶-酸两步水解法制备混合氨基酸液,再与硬脂酰氯反应合成N-硬脂酰基复合氨基酸表面活性剂。

The experimental results show that the molar ratio of carbon monoxide to carbon dioxide in the reacting mixture is frequently equal to unity hence the reaction scheme may be stoichiometrically represented as follows

实验证明:反应气体中一氧化碳与二氧化碳的摩尔比接近于1;苯氧化生成顺酐的反应是并串联反应,各反应级数均为准一级;并求出了各反应的活化能和指前因子。

A series of sulphonated SBS were achieved by reacting SBS blockcopolymer with sulphuric acid, meanwhile, the blends of PVC andsulphonated SBS were studied. By means of strength capabilityexamination and DSC analysis, it was found the miscibility wasincreased after SBS was sulphonated.2 The chemical grafting of styrene and PVC membrane2.1 The reaction condition of graftingBy means of the swelling and seepage of Styrene to PVC film,St was grafted onto PVC film by the initiation of BPO .

采用硫酸对热塑性弹性体SBS进行磺化,得到不同磺化度的产物,并对其与PVC的物理共混进行了研究;通过力学性能及DSC测试,发现SBS磺化后增加了与PVC的相容性(来源:Af2a2a2BC论文网www.abclunwen.com)。2 苯乙烯与聚氯乙烯膜的化学接枝2.1 苯乙烯与聚氯乙烯膜接枝条件利用苯乙烯对PVC的溶胀渗透,在过氧化苯甲酚的引发下发生接枝共聚反应。

PETEDA was synthesized through pentaerythrityl tetrabromide and ethylenediamine's reacting by the aminolyzing reaction of alkyl halide. It was proved that the product contains a lot of amino groups analyzed by FTIR (Fourier Transform Infrared Spectroscopy) and ETA.

以四溴代季戊烷和乙二胺为原料,通过卤代烷胺解反应,合成了树枝状分子季戊四乙二胺,采用傅立叶变换红外光谱和元素分析对其进行了表征。

Provided are carbide derived carbon materials prepared by thermochemically reacting carbide compounds and a halogen containing gas and extracting all atoms of the carbide compounds except carbon atoms, wherein the intensity ratios of the graphite G band at 1590 cm -1 to the disordered-induced D band at 1350 cm-1 are in the range of 0.3 through 5 when the carbide derived carbon is analyzed using Raman peak analysis, wherein the BET surface area of the carbide derived carbon is 1000 m 2 /g or more, wherein a weak peak or wide single peak of the graphite (002) surface is seen at 2 = 25 DEG when the carbide derived carbon is analyzed using X-ray diffractometry, and wherein the electron diffraction pattern of the carbide derived carbon is the halo pattern typical of amorphous carbon when the carbide derived carbon is analyzed using electron microscopy.

提供了得自碳化物的碳,其通过热化学反应碳化物化合物和含卤族元素的气体并提取除了碳原子之外的碳化物化合物的全部原子制备,其中当使用拉曼峰分析法分析该得自碳化物的碳时,在1590cm -1 的石墨G波段与在1350cm -1 的无序引发的D波段的强度比为0.3至5,其中该得自碳化物的碳的BET表面积是1000m 2 /g或更大,其中当使用X射线衍射法分析该得自碳化物的碳时,在2θ=25°观察到石墨(002)面的弱峰或宽单峰,以及其中当使用电子显微法分析该得自碳化物的碳时,得自碳化物的碳的电子衍射图是代表无定形碳的晕图案。该发射体具有良好的均匀性和长寿命。可以使用比用于生产常规碳纳米管的方法更廉价的方法制备发射体。

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The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因,如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务,你就做你的事好了。

Who is in possession of this?

这是谁的?