• The 4-methoxy-phenylhydroxy-acetic acid was synthesized by the carbonyl addition reaction of 4-methoxybenzaldehyde.

    通过4-甲氧基苯甲醛羰基加成反应合成4-甲氧基-苯基羟基乙酸

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  • The addition reaction with hydrogen cyanide is base-catalysed.

    酸的加成碱催化的。

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  • Addition reaction is implemented in a closed cauldron, thus raising its reaction temp.

    加成反应封闭内进行,可提高反应温度,缩短反应时间和提高产品得率。

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  • At the same time, the addition reaction of organozinc reagent and ketones was investigated.

    同时对有机锌试剂加成反应进行研究。

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  • The addition reaction of substituted phenyl nitrile oxide and p-Acetaminobenzenesulfamide were reported.

    本文报导了取代氧化物对乙酰氨基苯酰胺加成反应

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  • The yield of the addition reaction was increased from 66% to 98% because the synthesis method was improved.

    改进合成方法使加成反应产率原来的66%提高98%。

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  • Results show that the addition reaction of bromine with acetylene was obviously influenced by light condition.

    研究表明,光线条件溴素乙炔加成反应过程有非常明显的影响

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  • Michael reaction is a typical nucleophilic addition reaction, is always an organic chemistry domain research hot spot.

    迈克尔反应典型的亲核加成反应,一直是有机化学领域一个研究热点。

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  • The computation indicated that the stable silicyl alkene is produced by the addition reaction of silicon alkyne and hydro-gen.

    计算表明氢分子加成反应生成稳定甲硅烷基硅

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  • Halogen atom could activate the triple bond and as the directing group, the triple bond occurs the electrophilic addition reaction.

    原子作为保护基,代替末端炔发生碳-氢官能团化反应

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  • METHODS: Electrophilic substitution, reduction, oxidation and nucleophilic addition reaction were used in the synthesis of title compounds.

    方法:通过取代还原氧化加成等反应得到目的化合物

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  • This paper reports the route of synthesis multisubstituted alkenes by addition reaction of alkyne zirconalkylation with zirconocene complexes.

    本文报道络合物炔烃烷基化加成,合成多取代烯烃,产率较高。

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  • By contrast, are those formed by the addition reaction of an unsaturated monomer, such as takes place in the polymerization of vinyl chloride.

    缩聚不同,加聚物时不饱和单体通过加聚反应形成,例如氯乙烯单体聚合

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  • Synthetic reactions of hyperbranched polymers included condensation reaction, addition reaction, ring - opening reaction, grafting reaction, etc.

    超支化聚合物合成反应主要有缩聚反应、加成反应、聚合、接枝反应

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  • Based on the principle of phase transfer catalysis, 4-methoxy-phenylhydroxy-acetic acid was synthesized by the carbonyl addition reaction of 4-methoxybenzaldehyde.

    甲氧基苯甲醛、三氯甲烷为原料,转移催化羰基加成法合成了对甲氧基苯乙醇

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  • Preparing cyclopentane halide by the addition reaction of cyclopentene with hydrogen halide is a simplified process with a high yield and can be used in a large scale.

    卤素加成反应制备代环烷,工艺流程简单,原料经济,收率高,易实现工业化

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  • A process for preparing 1-methoxy-2-propanol by selective ring cleavage-addition reaction of propylene oxide with MeOH in the presence of HM-9512 catalyst is described.

    阐述了利用环氧丙烷甲醇催化剂HM-9512存在通过选择性加成制备1-甲氧基-2-工艺过程

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  • Silicone polyether surfactant was synthesized by the addition reaction of low hydrogen content silicone and allyl polyether with Pt catalyst and under no solvent condition.

    通过采用铂催化剂催化硅油烯丙基加成反应合成有机硅聚醚表面活性剂

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  • A novel addition reaction of methyl phenyldiazoacetate to enamine(which was prepared from acetophenone and secondary amine) was investigated using copper salt as a catalyst.

    催化剂的作用下,重氮乙酸甲酯吗啉衍生能够发生一种新型加成反应

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  • The equilibrium constants of addition reaction of alcohol to tetrahedral complex of cobalt with organophosphorus monobasic acids in octane are established by spectrophotometry.

    光度法测算了有机磷一元四面体配合物反应平衡常数

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  • C_(60) is one kind of fullerene with high conjugated cage-types structure. Its covalence between two hexagons has high reactivity, which behaves as addition reaction of double bond.

    高度共轭笼状结构的碳素体,分子结构中六边形共价碳碳双键是富电子区,反应性能烯烃有类似性,主要表现双键加成。

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  • On the contrary to the vinyl and aryl chlorides, the oxidative addition reaction of zerovalent palladium to chloro-substituted phosphaalkenes proceeded smoothly under mild conditions.

    代烯烃或芳烃相反,氯代膦烯与零氧化加成反应可以温和条件下进行

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  • Among the three steps, Addition reaction is the crucial step in that it is not only the slowest process but also how much its yield decides stand or fall of content of trichloropyridinol sodium.

    其中以加成反应最为关键,不仅过程收率多少决定了目的产品三氯吡啶醇钠含量的高低,是整个过程的关键步骤

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  • According to the discussion of reaction conditions using different initiations, it was believed that peroxide-initiated free-radical addition reaction was a promising method by mechanism analysis.

    通过机理分析和不同引发条件下自由基加成反应的比较,认为过氧化物引发自由基加成反应制备六氟丁醇具有工业化前景。

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  • The preparation of 1,1,2 ethanetricarboxylic acid from addition reaction of maleic acid with germaniumane trichloride under acidic condition, then hydrolysis has been investigated, the yield is 71%.

    糠醛为原料,先制得顺丁烯,用顺丁烯二酸三氯锗烷在酸性条件下加成,然后水解得到1,1,2 乙烷三羧酸,收率71%。

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  • You may, instead of breathing deeply, or better still, in addition to it, count slowly from one to ten. This will delay your angry reaction and weaken it.

    除了深呼吸可以慢慢地可以延迟生气反应时间。

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  • Sure, we could just say "This concert is awesome," but the addition of the swear word emphasizes the emotional reaction we have toward it - and easily conveys that emotional reaction to others.

    当然我们也可以这个音乐会棒了”,不过加上一个口,会强调我们情感反应——很容易的吧这种情绪反映传递给他人。

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  • In addition to the obvious safety-related benefits, the fast reaction time will ensure minimal work stoppage and thus result in increased worker productivity and company profitability.

    除了这些显而易见的安全方面的好处,第一反应时间将会保证最小工作停顿从而带来工人效率公司利润提高

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  • In addition to being unfair to ourselves, this reaction makes the other person feel silly because we are refuting their honest opinion.

    这样,除了自身不公外,这样反应也会使赞扬我们感到非常的难堪,因为我们辜负了他们对我们的信任。

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  • Depending upon reaction conditions, the product may be a polyketone formed by addition polymerization of the ketene double bond.

    随着反应条件不同,产物可以烯酮的双键加成聚合得到的聚酮。

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