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hydrazine hydrate
相关语句
  水合肼
     ThenⅢ_(a~d) reacted with 85% hydrazine hydrate at 115~120 ℃ for 4h to give 3-(2-trifluoromethylbenzimidazole-1-methylene)-4-amino-5-arylamino-1,2,4-triazole(Ⅳ_(a~d)),respectively in 53.5%,56.1%,61.8% and 50.7% yield.
     再于115~120℃下,与w(NH2NH2.H2O)=85%的水合肼反应4 h,制得3-(2-三氟甲基苯并咪唑-1-亚甲基)-4-氨基-5-芳胺基-1,2,4-三唑(Ⅳa~d),收率分别为53.5%、56.1%、61.8%和50.7%。
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
     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
     The experimental result showed that Cr(Ⅵ) was deoxidized to Cr(Ⅲ) at 30 ℃ in 8 min,adding 1.6 mL H_2SO_4 and 0.8 mL hydrazine hydrate to 25 mL chromium-containing waste liquid.
     实验结果表明,在30℃下于25mL含铬废液中加入1.6mLH2SO4和0.8mL水合肼,8min即可使Cr(Ⅵ)还原为Cr(Ⅲ)。
短句来源
     The relationship between the peak height and the concentration of hydrogen peroxide is linear from 6.4×10~(-6)~2.2×10~(-4) mol/L,while that of hydrazine hydrate is linear from 1.2×10~(-6)~3.0×10~(-4)mol/L.
     线性范围:过氧化氢为6 4×10-6~2 2×10-4mol/L,水合肼为1 2×10-6~3 0×10-4mol/L.
短句来源
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     ThenⅢ_(a~d) reacted with 85% hydrazine hydrate at 115~120 ℃ for 4h to give 3-(2-trifluoromethylbenzimidazole-1-methylene)-4-amino-5-arylamino-1,2,4-triazole(Ⅳ_(a~d)),respectively in 53.5%,56.1%,61.8% and 50.7% yield.
     再于115~120℃下,与w(NH2NH2.H2O)=85%的水合反应4 h,制得3-(2-三氟甲基苯并咪唑-1-亚甲基)-4-氨基-5-芳胺基-1,2,4-三唑(Ⅳa~d),收率分别为53.5%、56.1%、61.8%和50.7%。
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催化水合还原芳香族硝基化合物
短句来源
     The experimental result showed that Cr(Ⅵ) was deoxidized to Cr(Ⅲ) at 30 ℃ in 8 min,adding 1.6 mL H_2SO_4 and 0.8 mL hydrazine hydrate to 25 mL chromium-containing waste liquid.
     实验结果表明,在30℃下于25mL含铬废液中加入1.6mLH2SO4和0.8mL水合,8min即可使Cr(Ⅵ)还原为Cr(Ⅲ)。
短句来源
     The relationship between the peak height and the concentration of hydrogen peroxide is linear from 6.4×10~(-6)~2.2×10~(-4) mol/L,while that of hydrazine hydrate is linear from 1.2×10~(-6)~3.0×10~(-4)mol/L.
     线性范围:过氧化氢为6 4×10-6~2 2×10-4mol/L,水合为1 2×10-6~3 0×10-4mol/L.
短句来源
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  水合联氨
     Synthesis and Applications of Hydrazine Hydrate
     水合联氨的合成及应用
短句来源
     Cleaner production process for hydrazine hydrate
     水合联氨清洁生产工艺
短句来源
     A method for the determination of Ag in ores by chemical-XRF is developed. Ag is precipitated on microporous film with hydrazine hydrate (as reductor) and Au (as carrier and internal standard), and measured by XRF. The procedure is simple and rapid and has been successfully applied to the determination of Ag for x-xxx μg/g amounts in silver ore reference materials and other ore samples.
     在氨性介质中以水合联氨还原,Au兼作载体和内标,微孔滤膜制片,XRF测定Ag的方法应用于银矿标准物质及铜矿、铅锌矿、低品位金矿样品中x~xxxμg/g含量Ag的测定。
短句来源
  “hydrazine hydrate”译为未确定词的双语例句
     It was determined by orthogonal optimization that the amount of catalyst was the major factor in reduction. The conversion of p-nitroacetanilide was 100% when the reaction condition were: p-nitroacetanilide:hydrazine hydrate=1:1.8, p-nitroacetanilide:Pd/C(0.8)=1mol:8.5g, reaction temperature 80℃, reaction time 3h.
     当n(p-NO2C6H4NHCOCH3):n(N2H4H2O))=1:1.8、0.8%Pd/C催化剂8.5g/mol p-硝基乙酰苯胺时,80℃,反应3小时,P-硝基乙酰苯胺的转化率达100%。
短句来源
     With recovered and regenerated 5% Pd/C as catalyst and hydrazine hydrate as reductant, 5-amino-1,10-phenanthroline was synthesized by reduction of 5-ntiro-1,10-phenanthroline which was synthesized from phenanthroline by nitration.
     由1,10-邻菲罗啉经硝化制得5-硝基-1,10-邻菲罗啉,再经还原合成了5-氨基-1,10-邻菲罗啉。
短句来源
     Thus, at optimum operation conditions, hydrazine hydrate(50%),urea and benzaldehyde in mole ratio 1 0∶2 0∶0 8 were used,hydrazine hydrate and ure reacted at 98-101 ℃for 3-4 h to form semicarbazide, then,at pH 3-4 and room temperature,benzaldehyde was dropped in during 1.5h,the mixture was further stirred for 2h and finally refluxed for 1h.
     适宜的反应条件为 :n (H2 NNH2 ·H2 O)∶n (H2 NCONH2 )∶n (C6H5CHO) =1 0∶2 0∶0 8,氨基脲合成反应温度 98~ 10 1℃ ,反应时间 3~ 4h ;
短句来源
     The key intermediate ethyl 5-methyl-3-(quinoxalin-2-yl)-isoxazole-4-carboxylate (4) was ob- tained by 1,3-dipolar cycloaddition reaction of 2-(1-hydroxylimino-1-chloro-methyl)-quinoxaline (3) with sodium 1-aceto-1-ethoxycarbonyl-methide, which was converted to hydrazide 5 by treating with hydrazine hydrate.
     以 α-氯代喹喔啉-2-甲醛肟(3)与乙酰乙酸乙酯的钠盐经 1,3-偶极环加成制得关键中间体 5-甲基-3-喹喔啉-2-基-4-乙氧羰基异噁唑(4).
短句来源
     Sisal fiber induced by 0.05 mol/L KMnO 4 was grafted with acryloitrile in 0.2 mol/L HNO 3 solution and functionalized with hydrazine hydrate.
     在 0 .2 m ol/L 的硝酸溶液中 ,以 0 .0 5 mol/L 高锰酸钾为引发剂先合成剑麻接枝聚丙烯腈纤维。
短句来源
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  hydrazine hydrate
2,5-Bihydrazino-1,3,4-thiadiazole (2) was synthesized by condensation of 2,5-bimercapto-1,3,4-thiadiazole (1) with hydrazine hydrate, and compound 2 reacted with acyl chloride to give 2,5-biacylhydrazino-1,3,4-thiadiazole derivatives (3a-3e).
      
Reaction of Diethyl 1,1-Cyclopropanedicarboxylate with Hydrazine Hydrate: Synthesis and Crystal Structure of 1-N-Amino-2-oxopyrr
      
A solution of hydrazine hydrate was used as an alkaline medium to transform sulfur into sulfide.
      
NaPuO2C2O4·3H2O was isolated from a freshly prepared oxalate solution of Pu(VI) by reduction with a stoichiometric amount of hydrazine hydrate.
      
The reactions of methylhydrazine and hydrazine hydrate with chlorinated pyridazines and pyridazones were studied.
      
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Trimethylene dibromide reacted with potassium cyanide in ethyl alcohol, giving (a) γ-bromopropyl-cyanide, b.p. 88-93°/8 mm, and (b) trimethylene dicyanide, b.p. 118- 135°/8mm. The interaction of potassium phthalimide and γ-bromo-propyl-cyanide in ethyl alcohol gave γ-phthalimido-propyl-cyanide, m.p. 79-80°. In the presence of tri-ethanol- amine in ethyl alcohol the latter reacted with hydrogen sulfide, forming γ-phthalimido-n- butyro-thioamide, m.p. 182-184°. The condensation of γ-phthalimido-n-butyro-thioamide...

Trimethylene dibromide reacted with potassium cyanide in ethyl alcohol, giving (a) γ-bromopropyl-cyanide, b.p. 88-93°/8 mm, and (b) trimethylene dicyanide, b.p. 118- 135°/8mm. The interaction of potassium phthalimide and γ-bromo-propyl-cyanide in ethyl alcohol gave γ-phthalimido-propyl-cyanide, m.p. 79-80°. In the presence of tri-ethanol- amine in ethyl alcohol the latter reacted with hydrogen sulfide, forming γ-phthalimido-n- butyro-thioamide, m.p. 182-184°. The condensation of γ-phthalimido-n-butyro-thioamide and α,γ-dichloro-acetone gave 2-γ-phthalimido-n-propyl-4-chloro-methyl-thiazole (m.p. 115- 116°), which reacted with diethylamine, forming 2-γ-phthalimido-n-propyl-4-N-diethyl- amino-methyl-thiazole, b.p. 204-208°/4mm. The hydrochloride of the latter melts at 82-83°. The action of hydrazine hydrate on 2-γ-phthalimido-n-propyl-4-N-diethyl-amino- methyl-thiazole in ethyl alcohol gave 2-γ-amino-n-propyl-4-N-diethylamino-methyl- thiazole, b.p. 138-139°/4 mm. It formed a dihydrate, which could be dehydrated by boiling with barium oxide.

(一)4-溴代-丁腈與苯隣二羧醯-鉀亞胺在乙醇中互相作用卽得4-(苯隣二羧醯-亞氨基)-丁腈。 (二)4-(苯隣二羧醯-亞氨基)-丁腈與硫化氫起作用卽得4-(苯隣二羧醯-亞氨基)-丁硫醯胺。 (三)4-(苯隣二羧醯-亞氨基)-丁硫醯胺與1,3-二氯代丙酮縮合則成2-(γ-苯隣二羧醯-亞氨基)-正丙基-4-氯代-甲基-噻唑。 (四)2-(γ-苯隣二羧醯-亞氨基)-正丙基-4-氯代-甲基-噻唑與二乙胺起作用卽成2-(γ-苯隣二羧醯-亞氨基)-正丙基-4-N-二乙氨基-甲基-噻唑。後者與聯氨水合物起作用形成2-γ-氨基-正丙基-4-N-二乙氨基-甲基-噻唑。

Ethyl thiooxamate with 1, 3-dichloroacetone in acetone gave 2-carbethoxy-4-chloromethylthiazole (m.p. 55-56℃). The latter can also be prepared by heating ethyl oxamate, phosphorus pentasulfide and 1, 3-dichloroacetone in dry toluene. Treatment of 2-carbethoxy-4-chloromethylthiazole in methyl alcohol with potassium cyanide gave 2-carbethoxy-4-cyanomethyl thiazole (m.p. 87-88℃), which reacted with hydrazine hydrate at room temperature to form the corresponding hydrazide (m.p. 161-162℃).

(一)草酸硫代酰胺乙酯,在丙酮溶剂中,与1,3二氯丙酮起作用,即得2-甲酸乙酯-4-氯甲基噻唑。后者亦可用草酸酰胺乙酯,五硫化二燐和1,3二氯丙酮在甲苯中加热制得。 (二)2-甲酸乙酯-4-氯甲基噻唑溶于無水甲醇与氰化鉀起反应,产生2-甲酸乙酯-4-乙腈噻唑。后者溶于乙醇,在室温情况下,与85%肼起作用,即成2-甲酰腓-4-乙腈噻唑。

The fact that 2-alkoxy-5-aminopyridines(Ⅰ)and 2-alkoxy-6-aminobenzothiazole(Ⅱ)possess high tuberculostatic activities in vitro as well as in experimental animals led us to prepare a num- ber of analogous compounds belonging to quinoline series,namely,2-alkoxy(n-propoxy,or n- butoxy)-6-aminoquinoline(Ⅲe or Ⅲa)and its structural isomers,2-butoxy-5-(or 7-,or 8-)- aminoquinoline(Ⅲb,Ⅲc,or Ⅲd);and 2-butoxy-6-acetamino-(or dichloroacetamino-,or dimethy- lamino)-quinoline(Ⅳa,or Ⅳb,or Ⅳc)for the purpose of testing their...

The fact that 2-alkoxy-5-aminopyridines(Ⅰ)and 2-alkoxy-6-aminobenzothiazole(Ⅱ)possess high tuberculostatic activities in vitro as well as in experimental animals led us to prepare a num- ber of analogous compounds belonging to quinoline series,namely,2-alkoxy(n-propoxy,or n- butoxy)-6-aminoquinoline(Ⅲe or Ⅲa)and its structural isomers,2-butoxy-5-(or 7-,or 8-)- aminoquinoline(Ⅲb,Ⅲc,or Ⅲd);and 2-butoxy-6-acetamino-(or dichloroacetamino-,or dimethy- lamino)-quinoline(Ⅳa,or Ⅳb,or Ⅳc)for the purpose of testing their antimycobacterial ac- tivities,and also of studying the relationships between antibacterial activity and chemical structure. Besides,several 2-alkoxy-6-aminocinchoninic acid hydrazides(Ⅳa,Ⅳb,Ⅳc,Ⅳd,Ⅳe),were also prepared.As can be seen from the formula,there is an additional—CONHNH_2 group present in the molecule as compared with Ⅲa and its alkoxy analogues. The results of antimycobacterial activities against mycobacterium 607 and smegmatis activities are listed in tables 1—3. Ⅲa possesses 1/2—1/4 activity against mycobact.607 as compared with that of INH,but is comparable to the latter in the case of antismegmatis activity.Ⅲb,Ⅲc and Ⅲd possess the similar order of activity as Ⅲa.2-Hydroxy-6-aminoquinoline and also all the corresponding nitro- compounds of Ⅲa,Ⅲb,Ⅲc,Ⅲd and Ⅲe are of no significant activity.The acylated and methylated compounds of Ⅲa are also with much less activities,p-Amino-N-carbobutoxyaniline (Ⅴ)which was thought to be an open-ring compound of Ⅲa is also inactive.These facts show that the free amino and alkoxyl groups attached to aromatic structure are necessary for the exhibition of antimycobacterial activity.As to the position of the amino group attached to the benzene moiety of quinoline nucleus seems without practical influence.The introduction of a carbohydrazino group to the 4-position of Ⅲa or of its alkoxyl analogues is unfavorable to the in vitro antimycobacterial activity. The methods of preparation of compounds of type Ⅲ were by treating at first the 2-chloro- nitroquinolines(Ⅶ)with an appropriate sodium alcoholate to form 2-alkoxy-nitroquinolines (Ⅷ),and then the latter reduced by stannous chloride to give the required products(Ⅲ). The synthesis of the compounds of type Ⅵ was to begin with 2-chloro-6-nitrocinchoninic acid chloride(Ⅸ),which by treating with methyl or ethyl alcohol to give the corresponding methyl or ethyl esters(Ⅹ).The latter were then reacted with the appropriate sodium alcoholates to afford 2-alkoxy-6-nitrocinchoninic acid methyl or ethyl esters(Ⅺ),which were then catalytically reduced in the presence of Pd-C to give the corresponding amino-compounds (ⅩⅢ).The desired pro- ducts(Ⅵ)were obtained by treating the latter with hydrazine hydrate.Ⅺ directly reacted with hydrazine hydrate to give Ⅻ. Solvents of crystallization,melting points,yields of the compounds synthesized in this inves- tigation are summarized in table Ⅳ.

1.本文叙述了2-烷氧基-6-(或5-,或7-或8-)氨基喹啉,以及2-正丁氧基-6-乙酰(或二氯乙酰,或二甲)氨基喹啉的合成.2.合成了2-烷氧(甲氧,或乙氧,或正丙氧,或正丁氧)基-6-氨基辛可宁酸酰肼.3.将上述各产物及其中间体均进行了对结核分枝杆菌607及恥垢杆菌的体外抑制作用.结果表示Ⅲ类型化合物在体外的抗结核杆菌作用仅与联在芳香环上的烷氧基及伯氨基有关,而氨基在喹啉环的苯环部分上的位置则无关.4.加入一个羰肼基于Ⅲa 及其烷氧基同系物的4-位上对体外抗结核杆菌作用不利.

 
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