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二苯
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  diphenyl
     Study on Direct Synthesis of Diphenyl Carbonate with Heterogeneous Catalyzing Reaction Ⅷ. Effect of Loaded Ce and Sn Content on Catalytic Activity of the Pd/ La_(0.62)Pb_(0.38)MnO_3 Catalyst
     非均相催化一步合成碳酸二苯酯的研究 Ⅷ.Ce和Sn的添加量对Pd/La_(0.62)Pb_(0.38)MnO_3催化剂性能的影响
短句来源
     Synthesis of diphenyl carbonate in homogeneous catalyst Ti(OC_4H_9)_4-PbO under reactive distillation condition
     Ti(OC_4H_9)_4-PbO均相催化反应蒸馏合成碳酸二苯
短句来源
     Synthesis of diphenyl carbonate by transesterification of dimethyl carbonate using Ti(OC_4H_9)_4 catalyst
     Ti(OC_4H_9)_4催化酯交换合成碳酸二苯酯的研究
短句来源
     Synthesis of Diphenyl Carbonate by Oxidative Carbonylation of Phenol over PdCl_2 Mn(OAc)_2 Catalyst
     PdCl_2-Mn(OAc)_2催化苯酚氧化羰基化合成碳酸二苯
短句来源
     Study on the synthesis of diphenyl carbonate from decarbonylation of diphenyl oxalate over Zn(OAc)2·2H_2O
     Zn(OAc)2·2H_2O催化草酸二苯酯脱羰基合成碳酸二苯酯反应的研究
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  “二苯”译为未确定词的双语例句
     Synthesis of 1,2,3,4,4a,5-Hexahydro-10-H-Dibenzo [a,d]-Cycloheptatriene-10-One
     1,2,3,4,4a,5-六氢-10-H-二苯骈[a,d]环庚三烯-10-酮的合成
短句来源
     Er~(3+) Influence on Eu~(3+) Luminescence in Different Nuclear Perchlorate (Eu~(3+) ,Er~(3+) )
     异核高氯酸(Eu~(3+),Er~(3+))二苯亚砜配合物中Er_(3+)对Eu_(3+)发光的影响
短句来源
     Laser Flash Photolysis Studied on Photoinduced Electron Transfer from N,N,N′,N′-Tetra-(p-methylphenyl)-4,4′-diamino-1,1′-diphenyl Selenide (TPDASe) to Fullerenes (C_(60)/C_(70))
     富勒烯(C_(60)/C_(70))与N,N,N′,N′-四-(对甲苯基)-4,4′-二胺1,1′-二苯硒醚(TPDASe)间光诱导电子转移过程的激光光解研究
短句来源
     THE SYNTHESIS OF (1R, 3R, 4S, 5R)-3-TERT-BUTYLDIPHENYL SILYLOXY-1, 4-DIHYDROXY-6-OXABICYCLO [3.2.1]OCTAN-7-ONE
     (1R,3R,4S,5R)-1,4-二羟基-3-二苯叔丁硅氧基-6-氧代双环[3.2.1]-辛-7-酮的合成
短句来源
     SYNTHESIS OF 1,3,4,6-TETRACHLORO-3 α, 6 α-DIPHENYL GLYCOLURIL
     1,3,4,6-四氯-3α,6α二苯甘脲的合成
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  相似匹配句对
     Two.
     .
短句来源
     2)The introduction and translation of T.
     ()T.
短句来源
     Development of Diphenyl Guanidine
     胍的研制
短句来源
     Photochemical Synthesis of Benzhydryl Chloride
     氯甲烷的光化学合成
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     The fifth is benzene.
     第五为
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  diphenyl
MTT (3-(4,5-dimethyl-2-thiazol)-2,5-diphenyl-2H tetrazolium bromide) assay was performed to evaluate the in vitro cytotoxicity.
      
Further derivatives of 4-benzoyl-1,5-diphenyl-1H-pyrazole-3-carboxylic acid and their antibacterial activities
      
Compound 4, 5, 6, 7, and 8 were synthesized from 4-benzoyl-1,5-diphenyl-1H-pyrazole-3-carboxylic acid 1 as a starting material.
      
Acid chloride 2 was converted easily into the new derivatives consisting of 1-(4-benzoyl-1,5-diphenyl-1H-pyrazol-3-oyl)-sulfamide 5 and 3,4-dibenzoyl-1,5-diphenyl-1H-pyrazole 6.
      
Flow cytometry (FCM) demonstrated that MDA triggered cells to undergo apoptosis, in parallel with the findings in MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide] assay which showed that it can also impair cellular viability.
      
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Condensation of methyI β-keto-cyclohexane-carboxylate with diphenyI-bromomethane in boiling benzene gives rise to methyI α-diphenylmethyI- β-keto-cyclohexane-carboxylate. Hydrolysis of the keto ester with 10% alcoholic potash opens the ring to give α-diphenylmethyl-pimelic acid, the thorium salt of which, on pyrolysis at 400-450°, yields α-diphenylmethyl-cyclo-hexanone as expected.

β-羰基环己甲酸甲酯舆二苯溴甲烷在沸苯中縮合生成的α-二苯甲基-β-羧基环己甲酸甲酯,经水解生成α-二苯甲基庚二酸.其钍监在400-450°间裂解,生成α-二苯甲基环己酮.

The Mannich bases derived from phenylacetone (Ⅰ,R=Me)and dibenzyl ke- tone (Ⅰ,R=CH_2Ph) prepared in our previous work gave expected semicarba- zones(Ⅱ) in neutral or slightly acidic media.Degradation of their methiodides gave vinyl ketone semicarbazones (Ⅲ).The structure of the latter was shown by their characteristic ultra-violet light absorption properties,and they gave in- tense absorption bands near 260 mμ.The pyrazolinecarboxamides (Ⅳ),if formed,would behave more like saturated semicarbazones such as Me·CO·CHMePh...

The Mannich bases derived from phenylacetone (Ⅰ,R=Me)and dibenzyl ke- tone (Ⅰ,R=CH_2Ph) prepared in our previous work gave expected semicarba- zones(Ⅱ) in neutral or slightly acidic media.Degradation of their methiodides gave vinyl ketone semicarbazones (Ⅲ).The structure of the latter was shown by their characteristic ultra-violet light absorption properties,and they gave in- tense absorption bands near 260 mμ.The pyrazolinecarboxamides (Ⅳ),if formed,would behave more like saturated semicarbazones such as Me·CO·CHMePh and CH_2Ph·CO·CHEtPh,which gave maxima located at about 230mμ.The vinyl ketone semicarbazones could not be converted to the cyclic compounds (Ⅳ) by treatment with concentrated sulphuric acid.It was recalled that Δ~2-isoxazolines,beside vinyl ketone oximes,were obtained by us previously from the degradation of Mannich base oxime methiodides. Both the dimethylamino(I:R=CH_2Ph,R'=Me) and the diethylamino(I: R=CH_2Ph,R'=Et) compounds gave the identical product (Ⅷ) on treatment with semicarbazide hydrochloride in the presence of excess sodium acetate.It was recalled that an abnormal compound,m.p.101-102,was formed by these two Mannich bases on treatment with hydroxylamine hydrochloride and sodium acetate.This product might be (Ⅶ),formed by elimination of a mole of hy- droxylamine from (Ⅸ),which is analogous to (Ⅷ). Treatment of the Mannich base (I,R=CH_2Ph,R'=Me) itself with sodium acetate gave dibenzyl ketone.This is the reverse change of the original Mannich reaction.However,its methiodide,on degradation with sodium hydroxide, gave a vinyl ketone which readily dimerised into a dihydropyran (Xa or Xb). Several expected pyrazolines were obtained from the Mannich bases and phenylhydrazine.Their ultra-violet light absorption characteristics were listed.

几个 Mannich 碱在中性或微酸性的情况下制成它们的缩氨基脲,其中一个Mannich 碱在碱性情况下形成一个含有两分子氨基脲的物质。那些 Mannich 碱缩氨基脲的季铵碱当在碱性情况下递降时生成乙稀酮的缩氨基脲,而不生成环状的化合物(Ⅳ)。从二苯甲基酮衍生的一个 Mannich 碱经醋酸钠作用后变为原来的1,3-二苯基丙酮,但这个 Mannich 碱的季铵盐经碱作用后成为乙稀酮,而这个乙烯酮迅速贰聚。几个4,5-二氢隣二氮杂茂自 Mannich 碱如预期地形成。上列许多产物的紫外线光谱曾经测定。

A new iodine heterocycle, 3,6-dinitro-dibenzopyriodonium bisulfate (Ⅲa), prisms, m.p. 217.5° (dec.), was found to be readily prepared in 86% yield by treating 4,4'-dinitrodiphenylmethane with iodosyl sulfate, which was conveniently obtained by stirring a stoichiometric mixture of iodine and sodium iodate in concentrated sulfuric acid. The iodonium compound (Ⅲa) could be converted to the chloride (Ⅲb), colorless needles, m.p. 211.5° (dec), bromide (Ⅲc), yellowish needles. m.p. 217.5° (dec.), iodide (Ⅲd), yellow...

A new iodine heterocycle, 3,6-dinitro-dibenzopyriodonium bisulfate (Ⅲa), prisms, m.p. 217.5° (dec.), was found to be readily prepared in 86% yield by treating 4,4'-dinitrodiphenylmethane with iodosyl sulfate, which was conveniently obtained by stirring a stoichiometric mixture of iodine and sodium iodate in concentrated sulfuric acid. The iodonium compound (Ⅲa) could be converted to the chloride (Ⅲb), colorless needles, m.p. 211.5° (dec), bromide (Ⅲc), yellowish needles. m.p. 217.5° (dec.), iodide (Ⅲd), yellow powder, m.p. 164° (dec.) and picrate (Ⅲe), yellow needles, m.p. 183-184° (dec.) by treating its solution in formic acid with a 50% formic acid solution of sodium chloride, sodium bromide or potassium iodide or with an alcoholic solution of picric acid respectively. The structural formula (Ⅲ) of the new iodonium compounds was derived by means of potassium permanganate oxidation of the bisulfate (Ⅲa) to 2-iodo-4-nitrobenzoic acid, and by thermal decomposition of the iodide (Ⅲd) to 2,2'-diiodo-4, 4'-dinitro-diphenyl-methane (Ⅵ) (60% yield), m.p. 158-159°, the structure of which was shown by analysis and by comparison with what is known about the behavior of other iodonium iodides, e.g., 4,4'-dicarboethoxy-diphenylene iodonium iodide (Ⅷ), which decomposes on heating yielding 2,2'-diiodo-4,4'-dicarboethoxydiphenyl (Ⅸ). Compound (Ⅵ) could be reduced with tin and hydrochloric acid to a diamino compound (Ⅶ).The iodonium salt (Ⅲa) possessed the interesting property that when it was treated with dilute sodium hydroxide solution at room temperature with the addition of ethyl acetate or pyridine, a beautiful bluish-green color gradually developed in the organic layer. When it was heated with dry pyridine, the same color developed. The colored ethyl acetate solution changed to brownish yellow on acidification with dilute sulfuric acid and regained its bluish-green color when the acidified solution was made alkaline.Under similar conditions as described above, reaction between diphenylmethane and iodosyl sulfate gave a grayish substance, m.p. 210-212°, which was insoluble in common solvents. This substance was possibly a polymeric compound of formula (Ⅺ).

1.4,4'-二硝基二苯甲烷(Ⅰ)與硫酸亚碘醯(Ⅱ)作用,生成一种新型的含碘杂環化合物(Ⅲ_a)。 2.化合物Ⅲ_a與氯化鈉、溴化鈉、碘化鉀或苦味酸作用,置换成为相應的鹵化物(Ⅲ_(b-d))或苦味酸盐(Ⅲ_e)。 3.用鹼性高錳酸鉀溶液氧化化合物Ⅲ_a得2-碘代-4-硝基苯甲酸。 4.碘化物(Ⅲ_d)在它的熔點温度进行熱解,得2,2'-二碘代-4,4'-二硝基二苯甲烷。继还原,得相應的二氨基化合物。二者均为新化合物。 5.化合物Ⅲ_a用氢氧化鈉溶液处理,得到蓝绿色物質,溶於乙酸乙酯、丙酮、吡啶中成鲜明的蓝绿色溶液。乙酸乙酯溶液酸化後变成黄棕色,再鹼化復现蓝绿色。将化合物Ⅲ_a在无水吡啶中加熱,亦呈现蓝绿色。 6.在类似的条件下,二苯甲烷與硫酸亚碘醯起作用。

 
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