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      reaction
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  反应
    SYNTHESIS OF NAPROXEN AS NONSTEROIDAL ANTIINFLAMMATORY DRUG AND REACTION MECHANISM
    非甾体消炎药萘普生的合成与反应机理研究
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    Research, Manufacture and Evaluation of Titanium Silicalite Catalyst and Study on Course of Reaction in Propylene Epoxidation
    丙烯环氧化钛硅沸石催化剂的研制、评价及反应过程的研究
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    Studies on Direct of CH_4 and CO_2 to Acetic Acid by Two-step Reaction Sequence
    CH_4-CO_2两步反应直接合成乙酸研究
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    Study on the Nonlinear Behavior of CO Coupling-regeneration Reaction System
    CO偶联再生反应系统的非线性行为研究
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    Process Analysis and Simulation for the Catalytic Coupling Reaction of Carbon Monoxide to Diethyl Oxalate
    CO偶联合成草酸二乙酯反应体系的过程分析和模拟
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  化学反应
    A STUDY OF SURFACIAL REACTION BETWEEN SILANES AND FUMED SiO_2
    硅烷偶联剂与SiO_2表面化学反应的研究
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    Chemical Reaction Engineering and Technology EDITORIAL INDEX
    《化学反应工程与工艺》总目录
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    THE CHEMICAL REACTION STUDY OF CF/EP COMPOSITES INTERFACE WITH MODEL COMPOUNDS
    模型化合物法探讨碳纤维/环氧树脂复合材料界面化学反应可能性
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    FORCE-CHEMICAL REACTION AND INFLUENCE IN MECHANICAL BLENDING
    机械共混中的力化学反应及其影响
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    THE IMPACT OF CHEMICAL REACTION ENGINEERING ON THE DEVELOPMENT OF PETROCHEMICAL TECHNOLOGY
    化学反应工程对石油化工技术发展的影响
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  反应中
    Syntheses of Guanidine, Guanidinium Salts and Their Applications on Palladium-catalyzed C-C Bond Coupling Reaction
    胍、胍盐离子液体的合成及其在钯催化C-C键偶联反应中的应用
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    Catalytic action of potassium fluoride for condensation reaction of ethyl orthosilicate with triethanolamine
    氟化钾在原硅酸乙酯和三乙醇胺的缩合反应中的催化作用
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    STUDIES ON THE WITTIG REACTION (ⅩⅧ)──Ion Effects in the Wittig Reaction of Stabilized Ylide
    Wittig反应的研究(ⅩⅧ)──稳定膦叶立德的Wittig反应中的离子效应
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    UNIFORM DESGIN AND ITS APPLICATION IN ACYLATION REACTION OF GUANOSINE
    均匀设计及其在鸟嘌呤核苷酰化反应中的应用
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    Catalytic Performances of Bi_2O_3-and ThO_2-containing Oxides with Defective Fluorite Structure in Methane oxidation Coupling Reaction
    几种具有缺陷CaF_2型结构催化剂在甲烷氧化偶联反应中的行为
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  “reaction”译为未确定词的双语例句
    Theoretical Study on the Reaction Mechanism of Bis-Addition Reaction of Methyl Azide with C_(60)
    富勒烯C_(60)与甲基叠氮化合物CH_3N_3双加成反应的理论研究
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    Study on Clean Pulping and Bleaching of Bamboo and Reaction Mechanism of Oxygen-Containing Radical during Oxygen Delignification
    竹子清洁制浆漂白及氧脱木素过程中含氧自由基的作用机理研究
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    Models of the Photosynthetic Reaction Centers Based on Prophyrin and Ruthenium/Rhenium Polypyridyl Complexes
    基于卟啉和多吡啶钌/铼的光反应中心模型
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    Analysis on the Catalytic Reaction of Cyclohexanone Ammoximation over Titanium Silicalite-1(TS-1)
    钛硅分子筛TS-1催化环己酮氨肟化过程分析
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    Synthesis of difluoro[2,2] paracyclophane by degradation reaction
    霍夫曼降解合成二氟[2,2]对环番
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  reaction
       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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       Substituents at the 4th and 5th positions of the target thiazoles were introduced by a Hantzsch reaction, and the chain at the second position was extended through a Sandmeyer reaction, formylation, and Wittig olefination.
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       A series of ortho- meta- and para-N9-[(chloromethylphenyl)methyl]chloropurines 4-12 and N7-[(chloromethylphenyl)methyl]chloropurines 13-21 were obtained by the reaction of various substituted chloropurines with α,α'-dichloroxylenes.
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       A series of 1-[(sub)]-6-fluoro-3- [(sub)]-1, 3, 4-oxadiazol-2-yl-7-piperazino-1, 4-dihydro 4-quinolinones were synthesized by the reaction between ciprofloxacin and norfloxacin with an appropriate acid hydrazide in phosphorous oxychloride.
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       The pyrazolo[4,3-d]oxazinone 4 was obtained from direct reaction of the acid 1 with hydroxylamine hydrochloride.
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         This communication reports the results of a study of the gravimetric deter- mination of lead as normal phosphate, known as Vortmann and Bader method, which has been recently examined by Hubicki and Rys. According to our findings, tartaric acid should be added only when antimony is present. With the addition of tarearic acid unusual large excess of precipitant as suggested by Vortinann and Bader is required for complete precipitation. The suitable pH range for the precipitation of tertiary lead phosphate is ...
            本文報告用磷酸根測定鉛重量法的各種適宜條件。溶液的pH值應在6.5至10之間。過剩沉澱劑在溶液中的濃度應為0.00085——0.0033M。沉澱應在650℃-900℃間灼燒之;如在130℃乾燥,則沉澱內的水份不能完全驅盡。均勻沉澱可改善沉澱的性質,並可测定少至5毫克的鉛。如溶液中無銻,則不必加酒石酸。
文摘来源
         In connection with our work on “sulfabenzothiazoles”,several tertiary am- inophenyl-thioureas are required.The usual procedure of rearranging substituted ammonium thiocyanates failed to give satisfactory results.They were prepared, according to Douglass and Dains' procedure,by the reaction of benzoyl isothiocy- anate on p-ter.-amino-aniline followed by hydrolyzing the benzoyl thioureas formed.Among the products obtained,p-diethylamino-,p-N-piperidyl- and p-N- morpholinyl-thioureas and most of the inte...
            用异硫氰化苯醯与对-叔胺基苯胺相作用,得苯醯对-叔胺基苯硫脲。再经水解,即得对-叔胺基苯硫脲。经由此法制得对-二甲胺基苯硫脲,对-二乙胺基苯硫脲,对-(N-六氢吡啶基)-苯硫脲,对-(N-四氢基)-苯硫脲。其中后三者都是新化合物。综合过程中的中间产物,多半也是新化合物。
文摘来源
         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。
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