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  ethyl
     Synthesis and Antiviral Activities of Ethyl 5-Hydroxy-1H-Indole-3-Carboxylates
     5-羟基-1H-吲哚-3-羧酸酯类化合物的合成及抗病毒活性研究
短句来源
     Studies on the Amorphous Ru-base Catalysts and Their Applications in the Hydrogenation of Ethyl Lactate
     非晶态Ru基催化剂及其乳酸酯加氢反应研究
短句来源
     Enantioselective Hydrogenation to Synthesize Ethyl (R)-2-Hydroxy-4-Phenylbutyrate
     不对称催化加氢合成(R)-2-羟基-4-苯基丁酸
短句来源
     Study on the Synthesis of Ethyl Lactate
     乳酸酯合成的研究
短句来源
     Study on the Poly[2-(N, N-Dimethyl Amino)Ethyl Methacrylate]/Polysulfone Positively Charged Hollow Fiber Composite Nanofiltration Membrane
     聚甲基丙烯酸-N,N-二甲氨基酯/聚砜中空纤维纳滤复合膜的研究
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  acetic
     Synthesis of Acetic ether Catalysed by TiO_2/SO_4~(2-)HZSM-5
     TiO_2/SO_4~(2-)—HZSM-5催化合成
短句来源
     Then cyclodehydration of Ⅲa~g with acetic anhydide afforded 3-N-acetyl-2-aryl-5-(4-nitrophenyl)-1,3,4-oxadiazolines (Ⅳa~g)in 83.1%,85.6%,82.5%,79.5%,76.2%,73.1% and 70.8% yield respectively.
     最后,Ⅲa~g分别与酸酐作用脱水环化成 3 N 酰基 2 芳基 5 (4 硝基苯基) 1, 3, 4 口恶唑啉类化合物 (Ⅳa~g),收率分别为 83 1%、85 6%、82 5%、79 5%、76 2%、73 1%和 70 8%。
短句来源
     Study on Catalytic Synthesis of Acetic Ester with SO_4~(2-)/TiO_2/La~(3+) Solid Superacid
     SO_4~(2-)/TiO_2/La~(3+)固体超强酸催化合成酯的研究
短句来源
     The yield of β-naphthyl acetate was 97.8% under the optimum conditions: β-naphthlol 7.2 g(0.05 mol),acetic anhydride 6 mL(0.06 mol),aminosulfonic acid 1.0 g,reaction time 30 min,80 ℃.
     最佳条件为:酸酐6 mL(0.06 mol),β-萘酚7.2 g(0.05 mol),氨基磺酸1.0 g,反应温度80℃,反应时间30 min,产率达97.8%.
短句来源
     The appropriate reaction conditions were as follows: furaldehyde was 10mL(122mmol), V(furaldehyde) ∶V(acetic anhydride)=1 ∶2,n(furaldehyde) ∶n(K 2CO 3)=1 ∶ 0.55 , PEG1000 was 4.3% of the furaldehyde mass as the best phase transfer catalyst, the power of microwave was 260W, the irradiation time was 11min, the yield was up to 72.3%.
     较适宜的反应条件为 :糠醛 10mL( 12 2mmol) ,V(糠醛 )∶V(酸酐 ) =1∶2 ,n(糠醛 )∶n(K2 CO3 ) =1∶0 .5 5 ,PEG10 0 0用量为糠醛质量的 4 .3% ,微波辐射功率 2 6 0W ,辐射时间 11min ,产率 72 .3%。
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  ethanone
     1-(4-hydroxy-3-methoxyphenyl) ethanone 8 ;
     1-(4-羟基-3-甲氧基苯基)酮(1-(4-hydroxy-3-methoxyphenyl)ethanone 8);
短句来源
     Preparation of 2-(1H-Imidazol-1-yl)-1 (2,3,4-trimethoxyphenyl)ethanone
     2-(1H-咪唑-1-基)-1-(2,3,4-三甲氧基苯)酮的合成
短句来源
     Study on the Condensation of 2-Amino-5-substitutent-1,3,4-thiadiazole with 2-Chloro-1-(2,4-dichlorophenyl)ethanone
     2-氨基-5-取代-1,3,4-噻二唑与2-氯代-1-(2,4-二氯苯基)酮的反应研究
短句来源
     Synthesis of 1-(8-Methoxy-2,3-dihydro-1,4-benzodioxan-5-yl)ethanone
     1-{8-甲氧基-2,3-二氢苯并[b][1,4]二噁烷-5-基}酮的合成
短句来源
     Study on Synthesis and Bioactivity of 1 Aryl Ethanone Containing 1H 1,2,4 Triazole Group
     α-(1H-1,2,4-三唑-1-基)-α-芳氧烷基芳酮的合成和生物活性研究
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  “乙”译为未确定词的双语例句
     Polarized Populations and Natural Killer Cells of T Helper Cells in Patients with Chronic Hepatitis B Virus Infection
     Th细胞极化群体及自然杀伤性T细胞在慢性型肝炎病毒感染中的作用
短句来源
     Hepatitis B Virus Reinfection Following Liver Transplantation:Clinical and Experimental Study
     肝移植病人型肝炎病毒再感染的临床和基础研究
短句来源
     Study on the Relationship between Hepatitis B Virus and Hepatocyte Apoptosis
     型肝炎病毒感染与肝细胞凋亡的关系研究
短句来源
     Clinical and Experimental Study of Acupuncture Treatment in Patients with Chronic Hepatitis B
     针刺治疗慢性型肝炎的临床与实验研究
短句来源
     Study on the Association between HLA Class Ⅱ, Ⅲ Genes and Viral Hepatitis B
     HLA-Ⅱ类和Ⅲ类基因与型病毒性肝炎相关性的研究
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  ethyl
Several 1-(substituted phenoxy)-3-{[4-(4-trifluoromethyl) phenoxy] piperidin-1-yl} propan-2-ols (str.II) were prepared in a six-step reaction sequence starting from methylamine and ethyl acrylate and evaluated for antidepressant activity.
      
Synthesis of novel 3-[5-ethyl-2-(2-phenoxy-ethyl)-pyridin]-5-substituted isoxazoline libraries via 1,3-dipolar cycloaddition and
      
Furancontaining bisoxazoline with 4-benzyl on oxazoline rings exhibited higher enatioselectivity than congeneric bisoxazolines with 4-ethyl on oxazoline rings.
      
Meanwhile, the fluorescence lifetime of 2-[2-(9-ethyl-9H-carbazol-2yl)-vinyl]-quinolin-8-ol and its zinc complex showed long lifetime in benzene solution.
      
The effect of pH value on the electrostatic layer-by-layer self-assembly and the photo-responsive behavior of Poly{2-[4-(4-ethoxyphenylazo)phenoxy]ethyl acrylate-co-acrylic acid} (PEAPE) was studied.
      
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  acetic
Moreover, introduction of an acetic acid side chain on 2H-pyridazine-3-one and 6-chloropyridazine did not improve the AR inhibitory activity, which was an unexpected result.
      
These corresponding chalcones were reacted with phenyl hydrazide in glacial acetic acid, which led to the formation of novel 4-[5-(substituted phenyl)-1-phenyl-4,5-dihydro-1H-3-pyrazolyl]-2-methylphenol derivatives.
      
Though only two esters showed antiinflammatory activity similar to that of the parent drug at equivalent dose levels, all the esters were equipotent to indomethacin in the mouse acetic acid-induced writhing assay for analgesic action.
      
A sensitive high-performance liquid chromatography (HPLC) method was established for the determination of concentration of 5-FU-1-acetic acid in the gastrointestinal contents and plasma of rats.
      
5-FU-1-acetic acid released from 5-FU-PT was mainly distributed in the cecum and colon.
      
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  ethanone
Extraction of Iridium(IV) from Hydrochloric Acid Solution with Bis(piperidinoethylthioethyl)-1-phenyl-1-ethanone
      
The electrochemical fluorination of acetophenone in HF occurred exclusively in the ring and furnished ortho- and meta-isomers of fluoroacetophenone, 2,5-difluoroacetophenone, and 1-(3,3,6,6-tetrafluoro-1,4-cyclohexadienyl)-1-ethanone.
      
Evaluation of LY163443, 1-[2-hydroxy-3-propyl-4-{[4-(1H-tetrazol-5-ylmethyl)phenoxy]methyl}phenyl]ethanone, as a pharmacologic a
      
LY163443,1-[2-hydroxy-3-propyl-4-{[4-(1H-tetrazol-5-ylmethyl)-phenoxy]methyl}phenyl]ethanone, antagonized LTD4-induced contractions of guinea pig ileum, trachea, and lung parenchyma.
      
With 2-morpholino-1-cyclohexenyl-1-ethanone (6) isoquinolines8 and9 are obtained.
      
更多          


1. A simple method is presented for determining double bond index of pure unsaturated hydrocarbons, petroleum fractions and other hydrocarbon mixtures based on a correlation of observed refractive index, calculated refrac-tive index, molecular weight and the number of double bonds per molecule. The data neccessary are: (a) mid-boiling point, (b) refractive index at 20℃ for sodium D line, (c) density at 20℃ and (d) weight percent hydrogen of the

依据在20℃钠D线折光率实测值,在20℃钠D线折光率计算值,分子量及每一分子内所含双键数间之相互关系,推衍得一简易方法,用以测定纯不饱和烃及石油分馏油份之双键率(Double Bond Index).所需由实验测得之数据为试料之(甲)在20℃钠D线折光率,()在20℃时之密度,(丙)中间沸点(Mid-boiling point),及(丁)含氢重量百分数.用本法测得双键率值,与用尼蒲金(Lipkin),圣金(Sankin)及马丁(Martin)三氏法测得双键率值适相吻合.因此,用本法所测得之双键率,足资用以鉴定石油分馏油份内所含芳香族烃及烯(?)烃之主要型式.惟需指明者,即在依据本法测得之双键率,用以鉴定石油分馏油份内所含不饱和烃之主要型式时,必须测定由石油分馏油份内提出仅含不饱和烃浓缩物之双键率.

Conductivity measurements of the hydrochloride of aniline, methyl aniline and ethyl aniline in water aud in dioxane-water mixtures have been made at 25℃, by using a Jones Bridge. Measurements of conductances at 25℃ of these salts have been made in concentrations ranging from 0.1 normal to 0.001 normal, using water and numerous dioxane-water mixtures as solvents. The conductivities of these salts in water and some dioxane-water mixtures with excess free bases have also been measured. The hydrolysis constants...

Conductivity measurements of the hydrochloride of aniline, methyl aniline and ethyl aniline in water aud in dioxane-water mixtures have been made at 25℃, by using a Jones Bridge. Measurements of conductances at 25℃ of these salts have been made in concentrations ranging from 0.1 normal to 0.001 normal, using water and numerous dioxane-water mixtures as solvents. The conductivities of these salts in water and some dioxane-water mixtures with excess free bases have also been measured. The hydrolysis constants of these salts and the ionizatioa constants of these amines have been calculated from the conductivity measurements. The results are: K_h K_b Aniline hydrochloride 2.7 × 10~(-5) 4. 5 × 10~(-10) Methyl aniline hydrochloride 2.6 × 10~(-5) 4. 6 × 10~(-10) Ethyl aniline hydrochloride 1.1 × 10~(-5) 10. 6 × 10~(-10) A discussion of the effect of dielectric constant upon conductivities has been included. Calculations of the equivalent conductivities of these salts have been made and discussed. The equivalent conducfivities at infinite dilution at 25℃ are: Aniline hydrochloride 166 mho Methyl aniline hydrochloride 161 mho Ethyl aniline hydrochloride 152.5 mho

1. 作者在25℃時,用Jones電導橋测量氫氯化苯胺、N甲基苯胺及N基苯胺在水與水及二氧六圜的混合液裏的電導。這些氫氯化物的濃度為0.1,0.02,0.01, 及0.001 N。至於混合液中二氧六圜的成份,則爲每100毫升溶液內含有10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90等毫升。 2.含有過量苯胺類的這些氫氯化苯胺類的水溶液、以及水與二氧六圜的混合液中,也作了電導測定。 3.這些氫氯化物的水解分數、水解常數和這些苯胺的電離常數也作了計算和比較。 4.關於電導和介電常數的關係,在本文中曾爲簡單的討論。 5.這些氫氯化物的無限稀釋時的當量電導,在本文中也作了計算,並與文献中能查到的數據作了比較。

p-Nitro-acetophenone was prepared by diazotizing p-amino-acetophenone in fluoroboric acid solution and replacing the diazonium fluoroborate group by the nitro group in presence of finely divided copper as catalyst. Yield 55-60%; m.p. 76-78℃. Recrystallization from alcohol gave a product of m.p. 80℃.

醯苯胺、醋酸酐與氯化鋅作用,經水解後製得對胺基苯酮。在氟硼酸水溶液中重氮化之,再在亞硝酸鈉的水溶液中以銅粉為觸媒,將此重氮團置換成爲硝基,即得對硝基苯酮。

 
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