哌嗪

The progress in the catalytic amination of bifunctional alcohols to diamines or cyclic amines is reviewed in this paper.

以乙醇和哌嗪催化胺化合成N-乙基哌嗪的反应为模型，对分子间醇的催化胺化反应进行了研究。

The UV-Visible absorption spectra and the fluorescence emission spectra of sixteen tetra-substituted metallo-phthalocyanine complexes {R4PcM, where R=2-［4-(2-sulfonic ethyl)piperazin-1-］ ethoxyl, 2-(piperidin-1-yl)ethoxyl; substitution position at α-position and β-position of phthalocyanine ring; M=Zn, Ni, Coand Cu} were measured.

报道了16种含哌嗪或含哌啶四取代酞菁金属配合物{R4PcM， R=2-［4-(2-磺基乙基)哌嗪-1-基］乙氧基、 2-(哌啶-1-基)乙氧基；取代位置分别在α位和β位； M=Zn， Ni， Co， Cu}的UV-Vis吸收光谱和荧光发射光谱的测定，探讨了中心金属离子、取代基种类及其取代位置、溶剂等因素对酞菁金属配合物UV-Vis吸收光谱和荧光发射光谱性质的影响。

Modifications of alkylation, chlorination and Vilsmeier reaction were employed for the synthesis of aromatic aldehydes bearing nitrogen mustard derivatives and halogenoalkylpiperazinyl.

通过对Vilsmeier反应、烷基化反应和氯化反应的改进提出了以简单易得的苯胺和苯基哌嗪为原料制备氮芥和哌嗪芳香醛的方法。

Mission:"equality and mutual benefit, reputation first, unity and cooperation and friendship between the long-term" supply products: ethylenediamine; diethylamide; triethylamine; Diethylenetriamine; three ethylene diamine; three ethylene amines 40; 40 Five ethylene amines; five ethylene amines 6; caprolactam; DMF; allyl amine; N, N dimethylaniline; propylamine; are butylamine; are TOA; 3 Poly Cyanamide; 1,2 c diamine; ethanolamine; diethanolamine, triethanolamine; potassium iodide, potassium hydroxide, potassium permanganate, toluene, xylene, toluene of chlorine ; Acetone, butanone; acetylacetone; ethyl acetate, butyl acetate; Y-butyrolactone; DMC; acetyl of methyl acetate; Sanfu acetyl acid; Sanfu acetyl B Ethyl; methanol, ethanol, isopropanol; propylene glycol; glycerol; propargyl alcohol; 1.3 propylene glycol; xylitol; acetic acid; have acid; mercaptoacetic acid; vary Bitterness; adipic acid; trifluoroacetic acid; oxalic acid, the amino acid; o-amygdalin acid; DL-Acid; anhydrous piperazine; six non-piperazine, furfural, castor oil, ethylene Aldehyde; glutaraldehyde, multi-POM; isopropyl ether; anisole; tetrahydropyrrole; pure pyridine; 1.2 dichloroethane; methylene chloride, chloroform, carbon tetrachloride; hydrazine hydrate; Nonylphenol;-m-cresol; Se phenol; phenol; the tert-butyl phenol; Titanium Dioxide; iron; full Tangfen; Bisphenol A; azo two different nitrile; sodium azide; sodium carbonate ; Sodium chloride; iron oxide; cuprous chloride; thionyl chloride; D4; sodium bicarbonate; ammonia, potassium chloride; anhydrous sodium sulphite; ammonium persulfate; glycol Dingmi; B Glycol ether; calcium chloride; cyclohexanone; cyclohexane, methyl tertiary butyl ether, potassium carbonate, ferric chloride, potassium nitrate; Linsuansanna; zinc oxide; sodium nitrite; antimony oxide; Tartrate; OP-10; TX-10; tablets base; AES; sodium benzoate, sodium citrate; partial sodium silicate, sodium perborate, a sodium carbonate, sodium benzene; Asia sodium chlorate; Wuluo Care products; urea; hydrochloric acid, sulfuric acid, lactic acid; amino acid, hydrogen peroxide, ammonium bicarbonate

公司宗旨："平等互利，信誉至上，团结合作，友谊长久"乙二胺；二乙胺；三乙胺；二乙烯三胺；三乙烯二胺；三乙烯四胺；四乙烯五胺；五乙烯六胺；己内酰胺；二甲基甲酰胺；烯丙基胺；N，N二甲基苯胺；正丙胺；正丁胺；正辛胺；三聚氰胺；1，2丙二胺；一乙醇胺；二乙醇胺；三乙醇胺；碘化钾；氢氧化钾；高锰酸钾；甲苯；二甲苯；对氯甲苯；丙酮；丁酮；乙酰丙酮；醋酸乙酯；醋酸丁酯；Y-丁内酯；碳酸二甲酯；乙酰乙酸甲酯；三伏乙酰乙酸；三伏乙酰乙酸乙酯；甲醇；无水乙醇；异丙醇；丙二醇；丙三醇；丙炔醇；1.3丙二醇；木糖醇；冰醋酸；己醛酸；巯基乙酸；异辛酸；己二酸；三氟乙酸；乙二酸；对氨基苯乙酸；邻氯苦杏仁酸；DL-扁桃酸；无水哌嗪；六无哌嗪；糠醛；蓖麻油；乙二醛；戊二醛；多聚甲醛；异丙醚；苯甲醚；四氢吡咯；纯吡啶；1.2二氯乙烷；二氯甲烷；三氯甲烷；四氯化碳；水合肼；壬基酚；纯间甲酚；硒酚；苯酚；对叔丁基苯酚；钛白粉；铁粉；全糖粉；双酚A；偶氮二异丁腈；叠氮化钠；碳酸钠；氯化钠；三氧化二铁；氯化亚铜；氯化亚砜；D4；碳酸氢钠；氨水；氯化钾；无水亚硫酸钠；过硫酸铵；乙二醇丁醚；乙二醇乙醚；氯化钙；环己酮；环己烷；甲基叔丁基醚；碳酸钾；三氯化铁；硝酸钾；磷酸三钠；氧化锌；亚硝酸钠；氧化锑；酒石酸；OP-10；TX-10；粒碱；AES；苯甲酸钠；柠檬酸钠；偏硅酸钠；过硼酸钠；过碳酸钠；苯磺酸钠；亚氯酸钠；乌洛托品；尿素；盐酸；硫酸；乳酸；氨基磺酸；双氧水；碳酸氢铵

The mechanism for synthesizing piperazine has been discussed ,and its macrokinetics model has been founded, the activation energy and reaction velocity constant of piperazine and TEDA has been obtained, the results provided theoretic basis for industrialized production.

对合成哌嗪的机理进行了探讨，并建立了该过程的宏观动力学模型，求出了生成哌嗪和三乙烯二胺的活化能及反应速率常数，为工业化生产提供了理论依据。

Methods Benzhydrylpiperazine was synthesized by condensation of chlorodiphenylmethane and anhydrous piperazine in absolute ethanol.

以二苯甲基氯和无水哌嗪为原料，无水乙醇做溶剂，两者经缩合制得二苯甲基哌嗪。

The intermolecular catalytic amination of alcohols is examined by using the catalytic amination of ethanol with piperazine to N-ethylpiperazine as a model.

以乙醇和哌嗪催化胺化合成N-乙基哌嗪的反应为模型，对分子间醇的催化胺化反应进行了研究。

N,N'-ethylenediamine diacetic acid was prepared by condensation of ethylenediamine, formaldehyde and potassium cyanide. Then 2-oxo-1-piperazine acetic acid was prepared from N,N'-ethylenediamine diacetic acid. In addition, 2-oxo-1, 4-piperazine diacetic acid(3-KP) was prepared from 2-oxo-1-piperazine acetic acid with chloroacetic acid.

本文用乙二胺、甲醛和氰化钾合成了N，N′—乙二胺二乙酸，然后由N，N′—乙二胺二乙酸合成了2—氧—1—哌嗪乙酸，再由2—氧—1—哌嗪乙酸和氯乙酸合成了2—氧—1，4—哌嗪二乙酸(3-KP)。

Eight porphyrin compounds, meso-5, 10, 15, 20-Tetra [4-aminophenyl] porphine (TAPPH〓, 1), meso-5, 10, 15, 20-Tetra [4-(N-pyrrolidinyl) phenyl] porphine (TBPPH〓, 2), meso-5, 10, 15, 20-Tetra [4-(4'-ethylpiperazinyl) phenyl] porphine (TEPPH〓, 3), meso-5, 10, 15, 20-Tetra [4-(4'-butylpiperazinyl) phenyl] porphine (TUPPH〓, 4), meso-5, 10, 15, 20-Tetra [4-(4'-heptylpiperazinyl) phenyl] porphine (TEPPH〓, 5), 5- [4-(4'-ethylpiperazinyl) phenyl] -10, 15, 20-triphenylporphine (MEPPH〓, 6), 5- [4-(4'-buthylpiperazinyl) phenyl] -10, 15, 20-triphenylporphine (MUPPH〓, 7) and N, N'-di (meso-5, 10, 15, 20-tetraphenylporphinato) piperazine (DiPPH〓, 8) have been designed and synthesized. These porphyrins are never reported except TAPPH〓.

设计并合成了8种卟啉化合物，分别为meso-5，10，15，20-四（4-氨基苯基）卟啉（TAPPH〓，1），meso-5，10，15，20-四卟啉（TBPPH〓，2），meso-5，10，15，20-四[4-（4'-乙基哌嗪基）苯基]卟啉（TEPPH〓，3），meso-5，10，15，20-四[4-（4'-丁基哌嗪基）苯基]卟啉（TUPPH〓，4），meso-5，10，15，20-四[4-（4'-庚基哌嗪基）苯基]卟啉（THPPH〓，5），5，10，15-三苯基-20-[4-（4'-乙基哌嗪基）苯基]卟啉（MEPPH〓，6），5，10，15-三苯基-20-[4-（4'-丁基哌嗪基）苯基]卟啉（MUPPH〓，7）和N，N'-二（meso-5，10，15，20-四苯基卟啉基）哌嗪（DiPPH〓，8）。

Methods 2-(piperazin-1-yl)-1-(pyrrolidin-1-yl)ethanone (2) was synthesized from pyrrolidine via amidation and substitution, followed by treating with chloroacetyl chloride and triphenylphosphine in a "one pot" manner to give the corresponding phosphonium chloride 3 in a stable and pure form after crystallization from isopropanol.

以四氢吡咯为原料，先与氯乙酰氯成酰胺，再与哌嗪发生取代反应制得中间体［（1-四氢吡咯基）甲基］哌嗪(2)；化合物2与氯乙酰氯和三苯基膦反应，经异丙醇重结晶得到稳定的有机鏻盐(3)；化合物3与3，4，5-三甲氧基苯甲醛发生Wittig反应，再与马来酸成盐得目标化合物马来酸桂哌齐特(1)。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。