自由基加成
- 网络Radical addition;Free radical addition;Free-radical addition
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丙烯与溴化氢在催化剂作用下,进行自由基加成反应生产1-溴丙烷。
1-Bromopropane is produced from hydrogen bromide and propene in the presence of catalyst by free radical addition process .
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环状缩醛对某些含官能团烯烃的自由基加成反应
The Radical Addition of Cyclic Acetals to some Alkenes Containing FUnctional Groups
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实验数据表明,该反应历程为自由基加成反应历程,NH2的产生可能是由于在实验条件下发生了氧化还原反应。
Experiment data indicated that the mechanism of the reaction should be a radical course and NH 2 may be produced by oxidation and reduction reaction under higher pressure and temperature .
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第一步反应为自由基加成反应。
The first step is free - radical addition .
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三氯乙烯和四氯乙烯与羟基自由基加成反应的理论研究
Theoretical Study on the Addition Reaction of Trichloroethylene and Perchloroethylene with Hydroxyl Radical
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烯烃的自由基加成和亲电加成速率受不同的因素控制。
The rate constants of radical and electrophilic addition to alkenes are dominated by different factors .
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马来酸酐的羟基自由基加成反应活化能计算值为557kJ/mol;
The calculated activation energy on the addition reaction between MA and hydroxyl radical is 55.7 kJ / mol.
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自由基加成反应应用于萜类化学为萜基甲硫醚的选择性合成提供了一条新的、简便的、有效的途径。
A new simple and efficient synthetic method for methyl terpenyl sulfides via radical addition re-action is reported .
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通过苯乙烯与溴化氢气体发生反马氏规则自由基加成反应,合成了β-溴乙苯(β-BEB)。
β - bromoethyl benzene (β - BEB ) was synthesized by anti-Markovnikov addition of hydrogen bromide to styrene .
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在活泼烃生成的烃过氧化物引发下,硫醇容易与柴油中的烯烃发生自由基加成反应和自身的二聚反应;
The addition reaction between olefin and thiol can be initiated by the hydro-peroxides produced from the auto-oxidation of active hydrocarbons .
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结果证明:漂白过程中,氯主要以自由基加成的方式进入紫胶树脂,同时还有氯的自由基取代和树脂上醛基、伯羟基的氧化反应。
The results show that during the bleaching process , radical addition of chlorine to double bonds of lac resin is primary besides radical substitution of chlorine and oxidation of aldehyde and primary-hydroxyl group of lac resin and so on ;
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以结构为基础,以电子效应为主线,讨论了碳碳重键自由基加成反应的特点,特别着重研究了自由基加成反应的定位规律以及定位效应指数的应用。
This essay , based on structure , electron effect as the main course , discusses the characters of alkene 's free redical addition reaction , especially studying the location laws of free redical and the practice of location effect index .
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醋酸锰作用下二烯丙基叔胺与[60]富勒烯的自由基环加成反应
Manganese ( III ) Acetate Based Radical Cycloaddition of Tertiary Diallylamines with [ 60 ] fullerene
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加成反应占主导地位,其中,OH自由基最容易加成到未被Br取代的C原子上。
Addition reaction plays a dominant role . OH radicals are likely to add to non substituted C atoms .
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用密度泛函方法(DFT)研究了亚甲基环丙烷与1,3-双羰基化合物自由基不对称环加成反应的机理。
In the present work , the density functional theory ( DFT ) is employed to study the mechanism of the asymmetrical annular-addition of methylenecyclopropanes ( MCPs ) with 1,3-dicarbonyl compound radicals .
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自由基-分子加成反应活性的前线轨道理论研究
The study of the reactivity of radical molecular addition reaction using front orbit theory
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固化反应的机理可能为硫磺在高温下八元环首先发生均裂从而产生链自由基,然后硫磺自由基一方面与烯丙基双键作用进行自由基加成反应;
The curing mechanism was likely to be that the sulfur firstly broke its chain when heated to a relatively high temperature and sulfur radical was induced in the system .
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根据此结构关系可以推定此加成反应是由丙二酸二乙酯形成的自由基[·CH(CO2C2H5)2]对烯烃的亲电子性自由基加成反应。
It indicates that this addition reaction is an electrophilic free-radical addition of the malonic ester radical , CH ( COOC_2H_5 ) _2 , to the alkene molecules .