氨基化合物
- 与 氨基化合物 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In our research on study chemical reaction of active methylene compounds and brom-acetophenone. Because of brom-acetophenone is compound that contain carbonyl and halogen ,which will take place electrophilic substitution and nucleophilic addition. When active methylene compounds are ethyl acetoacetate and β-diketone, controlling reaction condition, we have found that mono-substitution's production and di-substitution's. production is isolated; active methylene compounds are acetoacetanilide and acetoacetanilide derivate, pyrrolidin-2-one derivants were obtained by substitution and close-ring reaction .but there is no report about it.
本文是让活泼亚甲基类化合物与溴代苯乙酮发生化学反应,由于溴代苯乙酮是含有羰基的卤代烃结构,它可以发生亲电取代和亲核加成反应,当活泼亚甲基类化合物为乙酰乙酸乙酯和β-二酮时,控制反应条件可以发生单取代和双取代两种产物;当活泼亚甲基类化合物为乙酰乙酰芳胺类化合物来反应时,溴代苯乙酮中的羰基与氨基会发生分子内的关环反应生成吡咯烷-2-酮衍生物,这在以前的研究中是没有发现的。
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A new inequilateral organic polyamine, 2-aminoethyl-bi(3-aminopropyl)amine, was synthesized by the additional and hydrogenation reaction of aminoacetonitrile with acrylonitrile.
利用氨基乙腈及丙烯腈的亲核加成、氢化反应合成了一种新的不等臂有机多胺化合物2-氨基乙基-二(3-氨基丙基)胺。
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The results indicate that the type and number of the substituents affect the toxicity of these compounds directly. A nitro group substitution increases the toxicity of the compounds, and on the contrary, an amido group substitution decreases their toxicity. For multi-nitrobenzenes, the toxicity of the o - or p -substituted nitrobenzene is bigger than that of the m -substituted one.
苯环上取代基的类型、数目和取代位置直接影响到标题化合物的毒性大小,强吸电子基如硝基会降低 Q -NO2和 E LUMO大小,使化合物毒性增强,且邻对位硝基取代的毒性高于间位取代;相反,给电子基团氨基的存在则会使化合物的毒性降低。
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A series of p-toluene sulfonylamido acetacylhydrazone derivatives were synthesized from p-toluenesulfonyl chloride which reacted with glycine to get the intermediate p-toluene sulfonylamido glycine, then through the esterification, hydrazinolysis to afford another intermediate p-toluene sulfonylamido acethydrazide, which condensed with different aldehydes to obtain the target compounds that were characterized by IR, 1H NMR, 13C NMR spectra and elemental analysis.
魏太保 ;冷艳丽;王永成;张建辉;张有明*摘要:以对甲苯磺酰氯为原料,通过与氨基乙酸反应得到中间体对甲苯磺酰氨基乙酸,再经酯化、肼解得到对甲苯磺酰氨基乙酰肼,然后与相应的醛缩合得一系列对甲苯磺酰胺基乙酰腙类化合物。其结构经元素分析, IR, 1H NMR和13C NMR确证。
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The structures of these two molecules are almost the same with slight differences in bond lengths and bond angles. And compounds 1-3 are the first examples of this type containing amido and ethoxide groups.
而且到目前为止,Sn4O4的梯子状结构中同时含有氨基和乙氧基的化合物还未见报道,化合物1,2和3为首次合成此类化合物。
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Part two: Using chloroformic ester reacted with potassuim thiocyanate to get thiocyanic esters. Then reacted with biological substituted pyrimidinamine to synthesize forty two thiourea compounds, thirty eight of them are new compounds. Their structures have been charactered by IR, 1H NMR and elemental analysis.
第二部分:先以氯甲酸酯和硫氰酸钾为原料合成异硫氰酸酯,再与有生物活性的取代氨基嘧啶反应,合成了一系列新的取代嘧啶基硫脲类化合物,合成的42个化合物中有38个为首次合成的新化合物,结构经元素分析、IR及~1H NMR得到确证。
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The enzymolytic products identified were:diisopro-pylaminoethanethiol through the breakdown of P-S bond, and its oxidized product, N, N'-dithiodiethylene-bis ; and diisopropyla-minochloroethane through the breakdown of S-C bond.
VS与电鳐乙酰胆碱酯酶作用的主要产物是: P—S键断裂产物二异丙氨基乙硫醇,该化合物在水溶液中不稳定,可进一步氧化为N,N'-双二异丙氨基乙基二硫醚;S—C键断裂产物二异丙氨基氯乙烷。
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This project mainly exploratorily studied that polyurethane was produced via condensation reaction between polyhydroxylated compounds and methyl carbamate, which was firstly synthesized by dimethyl carbonate and amines. The process is a green route because it turns away the synthesis and the utilization of toxical isocyanic acid ester.
本项目主要探索性地研究了碳酸二甲酯和胺类化合物反应生成氨基甲酸甲酯,然后氨基甲酸甲酯再和多羟基化合物直接反应得到聚氨酯材料,从而避免了异氰酸酯的合成和使用。
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Three series of donor-acceptorπ-conjugated molecules 1, 2, and 3 have been designed and synthesized with a N, N-dimethylamino, Julolidine group (2,3,6,7-tetrahydro-1H, 5H-pyrido[3, 2, 1-ij]quinolinyl), or N, N-diphenylamino group as the donor moiety, a phenylvinyl or thienylvinyl unit as the bridge, and a bromide or aldehyde group as the acceptor moiety.
本文设计并合成了1、2、3三个系列的D-π-A型化合物(Donor-Acceptorπ-conjugated compounds),在化合物分子中引入久洛尼啶基团(2,3,6,7-tetrahydro-1H,5H-pyrido-[3,2,1-ij]quinolinyl),N,N-二甲基氨基,或N,N-二苯基氨基为供电子基团,以苯乙烯基或噻吩乙烯基为桥链,以溴原子或醛基为吸电子基团。
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The anodic behavior of electrolytic nickel anode in nickel sulfamate plating Solution was investigated,using anodic polarization curves,metallographic observation of cross-sections of nickel deposits,Hull Cell tests with solutions with and without Cl-,F-,bending tests with five solutions of different compositions,and sulfur content analysis in nickel deposit with mass spectrometry.
采用极化曲线、金相观察、赫尔槽电镀试验、弯曲试验和质谱分析方法,研究了氨基磺酸盐镀镍的阳极行为,证明了当在氨基磺酸盐镀液中使用电解镍阳极时,其活化峰值电流和镀液组成有很大的相关性,当镀液中不含F-和Cl-时其阳极活化峰值电流小,阳极处于极化状态,或相当大面积处于极化状态,使氨基磺酸根在极化的阳极表面氧化,从而使含硫化合物夹附于镀镍层,形成镀层内应力,并使镀层成为层状结构,并出现半光亮的外观。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。