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硝基     
相关语句
  nitro
     Reduction of Aromatic Nitro Compounds with Hydrazine Hydrate Catalyzed by CuO/Al_2O_3 in Water
     水中CuO/Al_2O_3催化水合肼还原芳香族硝基化合物
短句来源
     Reduction of aromatic nitro compounds with hydrazine hydrate catalyzed by CuO-Al_2O_3 in water
     水中CuO-Al_2O_3催化水合肼还原芳香族硝基化合物
短句来源
     Synthesis of 1.3.3 Trimetly1 6′ etyoxymethy1 8′ nitro lindolinospiropyrans
     1,3,3-三甲基-6′-乙氧甲基-8′-硝基吲哚啉螺苯并吡喃的合成
短句来源
     (2)Reduction:at n (iron)∶ n (nitro compound)=3.0∶1 0 after refluxing for 3 h,the yield of amino compound was 78.1%.
     (2 )还原反应 ,n(铁粉 )∶n(硝基物 ) =3 0∶1 0 ,回流反应 3h ,产率为78 1% ;
短句来源
     Studies on the Selenium-catalyzed Reduction of Aromatic Nitro Compounds with CO/H_2O
     硒催化CO/H_2O还原芳香硝基化合物反应的研究
短句来源
更多       
  nitro group
     1-(2,3-dichlorophenyl)piperazine is synthesized from 2,3-dichloronitrobenzene and piperazine by alkylation, acidulation, reduction of nitro group, diazotization, substitution and hydrolysis reaction with the total yield of 48 2%.
     以2,6-二氯硝基苯和无水哌嗪为原料,经过烃化、乙酰化、硝基还原、重氮化与取代及水解等反应合成了1-(2,3-二氯苯基)哌嗪,总收率48.2%。
短句来源
     Because SAB30-2 contained a nitro group which is rarely observed in natural products and the contents of SAE-1 and SAP-1 were high in the roots, we accumulated the quantity of these 3 compounds (2.2 g, 3.9 g, 2.1 g, respectively).
     化合物SAB30-2的结构中含有硝基,SAE-1和SAP-1在天葵子中含量较高,因此我们累积了这3个化合物的量,分别得到2.2g、3.9g、2.1g。
短句来源
     It has been found that the lowest π~(-1) ionization energies I_1~m, I_2~m are moved towards higher energies under the influence of the nitro group, but that there is no significant dependence of the size of the shifts △I_1~m, △I_2~m on the position of the group.
     由于硝基使最低π~(-1)电离能I_1~m、I_2~m向较高值位移,但位移量ΔI_1~m、ΔI_2~m的大小与硝基取代位置无明显关系.
短句来源
     Methods The product was synthesized from 1-(4-nitrophenyl)piperazine by Boc protection,reduction of nitro group,acylation,hydrazinolysis and cyclization.
     方法以1-(4-硝基苯基)哌嗪为起始原料,经Boc保护、硝基还原、酰化、肼解、环合制得目标化合物。
短句来源
     Synthesis of triclosan from 2,4-Dichlorophenol and 2,5-Dichloro-nitrobenzene usually involves etherization, reduction of nitro group, diazotization and hydrolysis.
     其合成一般是以2 ,4 -二氯苯酚和 2 ,5-二氯硝基苯为原料 ,经过醚化、硝基还原、重氮化及水解等几步反应。
短句来源
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  nitrophenyl
     After 7 days of continuous methanol induction,the total secreted protein in culture supernatants amount to 1.2 mg/ml,migrating as the main bands of 41 kD on SDS_PAGE,α_Galactosidase activity was up to 18 U/ml assayed with p_nitrophenyl_α_D_galactopyranoside as substrate. The enzyme of α_galactosidase was purified and used to treat group B red blood cells for blood group conversion.
     经甲醇诱导表达 7d后 ,发酵液总蛋白分泌量约 1 .2mg/mL ,SDS_PAGE呈现约41kD特异表达带 ,与专一性底物对_硝基_苯基_α_D_吡喃半乳糖苷反应证明 ,表达产物具有α_半乳糖苷酶活性 ,最高达到 1 8U/mL。
短句来源
     After 7 days of continuous methanol induction,it was observed that the total secreted proteins in culture supernatants reached up to 1.2 mg/ml,migrating as the main bands of 41 kD on SDS PAGE. Alpha galactosidase activity was up to 18 U/ml when assayed using p nitrophenyl alpha D galactopyranoside as substrate.
     经甲醇诱导表达 7d后 ,发酵液总蛋白分泌量约 1 .2 mg/ml,SDS- PAGE呈现约 41 k D特异表达带 ,与专一性底物对 -硝基 -苯基 -α- D-吡喃半乳糖苷反应证明 ,表达产物具有 α-半乳糖苷酶活性 ,最高达到 1 8U/ml.
短句来源
     In control group, the same dose of oil was given without 2,4 dichlorophenyl P nitrophenyl.
     实验组经胃一次性灌入 2 ,4-二氯苯基 - P-硝基苯醚 ,对照组经胃灌入等量食用油。
短句来源
     Substituted phenylethyl 4 (4 nitrophenyloxy) piperidines(Ⅲ 1,2 ) were prepared by reaction 1 substituted 4 hydroxypiperidine with sodium hydride and 1 fluoro 4 nitrobenzene in anhydrous DMF. Two impurities: bis ( p nitrophenyl) ether(Ⅴ) and N,N dimethyl p nitroaniline(Ⅵ) were isolated, and the causes of producing Ⅴ and Ⅵ were discussed.
     以 1-取代苯乙基 - 4-哌啶醇和对硝基氟苯为原料 ,在 Na H/ DMF中制备得到了 1-取代苯乙基 - 4- ( 4 -硝基苯氧基 )哌啶 ( 1,2 )和分离得到了副产物 4 ,4′-二硝基苯醚 ( )和 N ,N -二甲基 - 4-硝基苯胺 ( ) ,并研究了副产物 , 的产生原因。
短句来源
     Electrochemical oxidation and reduction of meso tetra(o nitrophenyl) tetrabenzoporphyrin (H 2TP(o NO 2)TBP) and its coordination compounds of Zn(Ⅱ) and Co(Ⅱ) were studied by cyclic voltammetry thin layer spectrum electrochemistry methods in situ.
     采用循环伏安以及电化学和电子吸收光谱联用技术研究了邻硝基四苯基四苯并卟啉 (H2 TP(o NO2 )TBP)及其锌和钴配合物在DMF介质中的氧化和还原性质。
短句来源
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  nitryl
     The results of an ab intio MO study of the isomerization and dissociation reaction of nitryl hydride(HNO2)has been reported. It is found that,at 6-31G level, the energy barrier from nitryl hydride HNO_2 to trans-HONO is 292 kJ/mol,and it does not dissociat to H+NO2 or O+HNO easily.
     用从头计算方法对硝基氢(HNO2)体系的异构化及分解反应进行了研究,在6-31G水平上,该化合物异构化为反式亚硝酸的势垒为292kJ/mol,且不易分解为H+NO2或O+HNO。
短句来源
     10-Hydroxy-5,10-dihydrophenophosphazine 10-oxide reacted with acetyl nitryl, viz.
     室温下,用醋酸硝酰(浓硝酸与冰醋酸混合物)将10-羟基-5,10-二氢磷杂吖嗪-10-氧化物硝化5 h,得10-羟基-2-硝基-5,10-二氢磷杂吖嗪-10-氧化物(74%)。
短句来源
     The hydroxyl of 1-tert-octyl-3-hydroxyl azetidine can be replaced by methyl-sulfuric-acyl and nitryl to obtain the l-tert-octyl-3-((methylsulfonyl)oxy)azetidine and1 -tert-octyl-3,3-dinitroazetidine.
     1-叔辛基-3-羟基氮杂环丁烷上的羟基可以被甲磺酰基和硝基取代分别得到1-叔辛基-3-甲磺酰基氮杂环丁烷和1-叔辛基-3,3-二硝基氮杂环丁烷。
短句来源
     Mechanism of the Isomerization in Plane of Nitryl Hydride
     硝基氢面内异构化反应机理的研究
短句来源
     Treat basicity wastewater during nitryl compound production by incineration method
     焚烧法处理硝基化合物生产过程中产生的碱性废水
短句来源
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  nitro
SYNTHESIS AND CYTOTOXIC PROPERTIES OF NITRO- AND AMINOCHALCONES
      
Twenty-two nitro- and aminochalcones were synthesized and characterized.
      
The aminochalcones were generally more cytotoxic than their nitro precursors.
      
Using the QSAR models, four new metalloporphyrins with substituted nitro group were designed, and their catalytic activities were predicted.
      
A hyperbranched azo polyurethane was synthesized by one-step polymerization of an A2 type monomer diphenylmethane-4,4'-diisocyanate and a B3 type monomer 4-(N,N'-bis(2-hydroxyethyl))amino-2'-hydroxyethoxyl-4'-nitro-azobenzene.
      
更多          
  nitro group
Using the QSAR models, four new metalloporphyrins with substituted nitro group were designed, and their catalytic activities were predicted.
      
Quantum-chemical calculation on the interaction of ОН- ion with G molecule shows a possibility for peroxynitrite formation upon approach of the ion to the nitro group within the ОNO2 plane.
      
The nitroorganic complex was formed in the reaction between acetate and nitrate complexes by the replacement of the carboxyl group in the acetate complex by the nitro group.
      
It was found that the nitroorganic complex was structurally analogous to the nitromethane molecule bound to the surface through the nitro group.
      
Formation of 2,4-DNT reflects the realization of one of the possible mechanisms of TNT ortho-nitro group elimination and switching over to the pathways of metabolism of dinitrotoluenes, which are much more easily biodegradable than TNT.
      
更多          
  - nitro
A hyperbranched azo polyurethane was synthesized by one-step polymerization of an A2 type monomer diphenylmethane-4,4'-diisocyanate and a B3 type monomer 4-(N,N'-bis(2-hydroxyethyl))amino-2'-hydroxyethoxyl-4'-nitro-azobenzene.
      
The Ado-Met-enriched mutant AM-65 was selected from mutants induced with N-methyl-N-nitro-N"-nitrosoguanidine.
      
The mutagenic effect of N-methyl-N'-nitro-N-nitrosoguanidine (MNNG), mitomycin C, and hydrogen peroxide determined from the induction of E.
      
The possibility of obtaining mutant yeasts Yarrowia lipolytica VKM Y-2373 with increased ability to synthesize citric acid from glucose by using UV irradiation and N-methyl-N'-nitro-N-nitrosoguanidine was studied.
      
lipolytica treated with either UV or N-methyl-N'-nitro-N-nitrosoguanidine, three mutants were selected that displayed higher (by 23%) biosynthetic ability as compared with the initial strain.
      
更多          
  nitrophenyl
4-(p-Nitrophenyl)-1H-6-R-quinolones-2 were nor reduced byEscherichia coli cells.
      
methylumbelliferyl and p-nitrophenyl sugar derivatives were determined.
      
The Michaelis constant of the elastase for N-t-Boc-L-alanine p-nitrophenyl ester is 0.10 mM; the Michaelis constant of the cathepsin G for N-benzoyl-L-tyrosine ethyl ester is 0.42 mM.
      
Catalytic properties of the enzyme in reactions with L-tryptophan and some other substrates as well as competitive inhibition by various amino acids in the reaction with S-o-nitrophenyl-L-cysteine were studied.
      
The α-N-acetylgalactosaminidase is resistant to NaCl; for p-nitrophenyl-α-N-acetyl-D-galactosaminide, the Km is 0.38 mM.
      
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