乙酯在有机化工分类中的翻译结果 --cnki翻译助手

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      乙酯

ethyl(5659)
ethyl ester(450)
ethyl esters(78)
ethyl chloroformate(43)
ethyl carbonate(15)
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  ethyl

    Studies on the Amorphous Ru-base Catalysts and Their Applications in the Hydrogenation of Ethyl Lactate

    非晶态Ru基催化剂及其乳酸乙酯加氢反应研究

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    Enantioselective Hydrogenation to Synthesize Ethyl (R)-2-Hydroxy-4-Phenylbutyrate

    不对称催化加氢合成（R）-2-羟基-4-苯基丁酸乙酯

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    Study on the Synthesis of Ethyl Lactate

    乳酸乙酯合成的研究

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    Study on Composite Extraction Distillation Separation of Ethyl Acetate-Ethanol-Water Mixture

    复合萃取精馏分离乙酸乙酯—乙醇—水混合液的研究

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    Study on the Synthesis of Ethyl N—(2, 4—Xylyl) Formimidate

    N-(2,4-二甲苯基)亚胺基甲酸乙酯的合成研究

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  ethyl ester

    Reaction of 3-(2-Oxocloalkyl)Propionic Acid and(R)-2-Thioxothiazolidine-4-carboxylic Ethyl Ester

    3－（2－氧代环烷基）丙酸与（R）－2－硫代四氢噻唑－4－羧酸乙酯的反应

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    Synthesis of N-Acyl-(R)-thiazolidine-2-thione-4-carboxylic Ethyl Ester

    N－酰基－（R）－四氢噻唑－2－硫酮－4－羧酸乙酯的合成

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    Synthesis of (R)-N-(γ-alkyl-δ-keto-hexanoyl)thiazolidine-2-thione-4-carboxylic Ethyl Ester and Its Reaction with(R,S)-α-Phenyl Ethylamine

    （R）－N－（γ－烃基－δ－酮己酰基）四氢噻唑－2－硫酮－4－羧酸乙酯的合成及其同（R，S）－α－苯乙胺的反应

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    Reaction of N-Acyl- (R)-Thiazolidine-2-Thione-4-Carboxylic Ethyl Ester with D,L-Amino Acid

    N-酰基-(R)-四氢噻唑-2-硫酮-4-羧酸乙酯与外消旋氨基酸的反应

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    In the presence of alkaline soap as emulsifier and catalyst, hydrogenated rosin sucrose esters (HRSE) were synthesized by transesterification reaction of hydrogenated rosin ethyl ester and sucrose under the conditions of (125±1)℃,molar ratio of hydrogenated rosin ethyl ester to sucrose 1 ∶1, pressure 0.090 MPa without solvent.

    以碱性皂为乳化剂和催化剂,在(125±1)℃、反应物料物质的量之比1∶1,真空度0.090MPa及无溶剂的条件下,通过氢化松香乙酯与蔗糖的酯交换反应合成了氢化松香蔗糖酯(HRSE)。

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  ethyl esters

    The paper introduced an industrial test(300 t/a) in which sucrose fatty acid esters(SE) were synthesized by transesterification of fatty acid ethyl esters with sucrose in propylene glycol solvent.

    进行了由蔗糖和脂肪酸乙酯在丙二醇溶剂中经酯交换合成蔗糖脂肪酸酯(Sucrose fatty acid esters)简称蔗糖酯(SE)的300 t/a工业性实验。

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    Calculation of ~(17)O-NMR Chemical Shifts of Carbonyl Groups in Carboxylic Methyl and Ethyl Esters

    羧酸甲乙酯中羰基~(17)O-NMR化学位移研究

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    Under this conditions, the yield of ethyl esters was 85%, propyl ester 94% and butyl ester 92%.

    上述条件下 ,尼泊金乙酯的产率为 85% ,尼泊金丙酯的产率为94 % ,尼泊金丁酯的产率为 92 %。

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    AIM A new process to prepare the glycerides of eicosapentaenoic acid(EPA) and docosahexenoic acid(DHA) from purified ethyl esters of EPA and DHA.

    目的：用高纯度的二十碳五烯酸（EPA）乙酯和二十二碳六烯酸乙酯制备EPA、DHA甘油酯的工艺。

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    RESULT homogeneous transesterification between EPA DHA ethyl esters and glycerol bigan at 120℃,and equilibrated at a ratio of 45% inversion of EPA DHA into glycerides winthin 1 hr at 170℃.

    结果：EPA乙酯、DHA乙酯和甘油形成均相溶液后，在170℃1h 内甘油脂转化率大于45 ％，反应产物经过分子蒸馏提纯，可制得纯度大于70％的EPA甘油酯、DHA甘油酯。

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  ethyl chloroformate

    The result indicated that the reacting mixture containing dioxane 11.3 mL /g HDCA which had been added ethyl chloroformate drop wise should be keep at 10 ℃ for 30 min,then,rising to 15 ℃ for another 20 min in the step of forming mixed anhydride,and 1.5 mol/L NaOH was used to dissolve taurine before aminolysis,and crude product was recrystalled by acetone in purifying process.

    结果表明,形成混酐时,二氧六环用量为11.3 mL/g HDCA,滴加氯甲酸乙酯后先在10℃反应30 min,再在15℃下反应20 min; 用1.5 mol/L的NaOH水溶液溶解牛磺酸后再进行氨解;

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    3,4-difluoroaniline react with carbon disulfide in existence of triethylamine, then react with ethyl chloroformate and get 3,4-difluorophenyl isothiocyanate.

    以3,4-二氟苯胺为原料,先在三乙胺存在下与二硫化碳生成N-荒酸三乙胺盐,接着与氯甲酸乙酯反应得到3,4-二氟异硫氰苯。

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    Diethyl carbonate, ethanol, ethyl chloroformate, ethyl acetate,1,1-diethoxyethane were separated and qualitatively analyzed respectively, andexplained the formation of the by-products from the reaction mechanism.

    实现了对催化剂PdCl_2-CuCl_2/AC(活性炭)上催化合成碳酸二乙酯反应的主产物碳酸二乙酯、副产物1,1-二乙氧基乙烷、乙酸乙酯、氯甲酸乙酯的定性,并从反应机理进行了解释。

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    The synthesis of Flupirtine maleate was studied. 3-nitro-2,6-diaminopiridine was chosen as start material,which was amined sperately at position 2 and 6, then catalystically hydrogenated and acylated with ethyl chloroformate, finally salted with maleic acid to get Flupirtine in a total yield 76.5%.

    本论文对氟吡汀及其合成工艺进行研究,选择3-硝基-2,6-二氯吡啶为起始原料,经过2,6位的选择性胺化,催化加氢还原,与氯甲酸乙酯进行3位氨基选择性的酰化反应,最后与马来酸成盐,得到氟吡汀,总收率为76.5%。

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    thctic method of it's slanting from naphthalene, hydrazine hydrate, ethyl chloroformate is in.

    本文报告了以萘、水合肼、氯甲酸乙酯为主要原料合成该化合物的方法,以萘计算的总产率为40％左右.

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  查询“乙酯”译词为其他词的双语例句
ethyl carbonate

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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.
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       Synthesis of novel 3-[5-ethyl-2-(2-phenoxy-ethyl)-pyridin]-5-substituted isoxazoline libraries via 1,3-dipolar cycloaddition and evaluation of antimicrobial activities
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       Furancontaining bisoxazoline with 4-benzyl on oxazoline rings exhibited higher enatioselectivity than congeneric bisoxazolines with 4-ethyl on oxazoline rings.
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       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.
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       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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  ethyl ester
       The catalytic constant (25 s-1) andKM (0.17 mM) for the immobilized enzyme for the hydrolysis of N-acetyl-L-tyrosine ethyl ester are comparable to the corresponding characteristics for the free enzyme.
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       This was also related to the presence in chloroform of chlorocarbonic acid ethyl ester that reacted with roquefortine.
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       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.
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       S-naproxen imprinted polymer was prepared with acrylamide as a functional monomer, 1,4-butanediyl diacrylate as a new kind of crossliner, and 2,4,6-trimethylbenzoylphenyl-phosphinic acid ethyl ester as photoinitiator.
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       Gas-chromatographic determination of trace O-isobutyl-2-S-(N,N-diethylamino)ethyl ester of methylthiophosphonic acid (VX-type compounds) in slime
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  ethyl esters
       Reactions of Carboxymethyl Polysaccharides and Their Ethyl Esters with Amines
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       The reaction of carboxymethyl polysaccharides and their ethyl esters with amines was studied with the aim to determine how the structure of the polymeric acylating agent affects the composition of the reaction products.
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       High-temperature copolymerization of ethyl esters of vinyl- or isopropenylcyclopropanecarboxylic acids with SO2 was studied as a route to functionally substituted unsaturated polysulfones.
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       Adsorption parameters in solutions of ethyl esters of aliphatic acids
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       4-Butyl-1,2-diphenylpyrazolidine-3,5-dione derivatives were prepared by its condensation with Schiff bases formed from p-aminobenzoic acid and its methyl and ethyl esters as amine components and substituted aromatic aldehydes.
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  ethyl chloroformate
       1,3-Diaryl-4-isocyanatopyrazoles were obtained by reaction of 1,3-diarylpyrazole-4-carboxylic acids with ethyl chloroformate and sodium azide or by reaction of 1,3-diarylpyrazole-4-carbonyl chloride with trimethylsilyl azide.
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       Isomerization of 2-allyl-6-methylaniline by the action of potassium hydroxide at 300°C afforded cis and trans isomers of 2-methyl-6-(1-propenyl)aniline which were converted into the corresponding carbamates by treatment with ethyl chloroformate.
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       Amino acids have been chosen as model polar compounds of biological interest, and 9-fluorenylmethyl chloroformate (FMOC) and (+)-1-(9-fluorenyl)ethyl chloroformate (FLEC) have been used as derivatizating reagents.
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       benzoic, phenylacetic, phenylpropenoic (cinnamic), phenylglycolic (mandelic), phenylpropionic and their variously substituted forms can be converted almost instantly to derivatives amenable to GC by treatment with methyl or ethyl chloroformate.
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       Determination of biogenic amines by RPHPLC with fluorescent detection after derivatization with 2-(9-carbazole)ethyl chloroformate (CEOC)
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  其他

         The current methods for the preparation of ethyl orthosilicate do not give satisfactory results.It is found that the low yield is due to the use of excess alcohol,which,in presence of hydrogen chloride,produces water and causes the ethyl orthosilicate to undergo a hydrolytic polycondensation.The condensation products have been isolated and identified as 1,3-hexaethoxydisiloxane and 1,3,5- octaethoxytrisiloxane. An improved method,consisting of the addition of equivalent quantities of silicon tetrachloride a...
            现行文献中所载原矽酸乙酯的制备法,其产率均不能使人满意。我们找出产率不高的主要原因是过量的醇和作用所发生的氯化氢生成了水,水引起了原矽酸乙酯的水解缩聚作用。这已经由实验证明。作用副产物亦经纯化鉴定,主要的是1,3-六乙氧基二矽氧烷和1,3,5-八乙氧基三矽氧烷。改进的制备法是将等作用量的四氯化矽和无水乙醇(克分子数比为1:4)同时滴入冷却的、受搅拌的原矽酸乙酯(作为稀释剂)中,经搅拌半小时,即徐徐加热以除去氯化氢,然后蒸馏。这样,原矽酸乙酯的产率达95%。这个方法并适用于连续操作。
文摘来源
         A continuous method using mixing column and aeration column with yield over 90% for the preparation of ethylorthosilicate was described.
            本文敍述使用混合塔及通氣塔裝置的連續法製備正矽酸乙酯。收率超過90％。
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         The overall reaction of chlorination of O,O-diethyldithiophosphoric acid,giving O,O-diethyl-thiophosphoryl chloride and sulphur monochloride,is found to consist of following successivesteps:One of the reaction intermediates,bis-(diethylthionophosphate) disulphide,has been isolatedand identified,and another intermediate,the diethyhhionophosphate sulphur chloride,whichis too unstable to be isolated,has been identified indirecdy through the following reaction:(?)A crystalline solid appearing in the course of t...
            二硫代磷酸 O,O-二乙酯的氯化产物是硫磷醯氯 O,O-二乙酯及一氯化硫。其氯化过程的中间物,硫代磷酸 O,O-二乙酯氯化硫,双(硫代磷酸二乙酯)二硫物,双(二硫代磷酸二乙酯)三硫物俱经分离及检定,上述三化合物形成的条件,以及进一步氯化的产物均加以确定,故二硫磷酸 O,O-二乙酯的氯化过程业已阐明。志谢:本实验中的碳、氢元素分析,系中国科学院有机化学研究所代做,特此志谢。
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