研究结果表明，1，3-偶极环加成反应是以协同反应机理进行的。
The studies indicate that 1,3-dipolar cycloaddition reactions are concerted reactions.
论文最后对该催化剂在完成环加成反应过程中的催化机理进行了初步探讨。
At last, the catalytic mechanism of cycloaddition of propylene oxide with carbon dioxide is discussed.
综述了手性配体金属络合物催化剂催化1,3 -偶极环加成反应的研究进展。
The research advances of the chiral ligands metal complexes catalysts used in asymmetric 1, 3-dipolar cycloaddition reactions were reviewed in this paper.
用半经验am 1方法研究了C _(60)与单态二氯卡宾环加成反应的反应机理。
The cycloaddition reaction of dichlorocarbene with C60 has been studied by using the semi-empirical method AM1. A reasonable mechanism of the reaction has been suggested.
本文介绍了在固相载体上进行的环加成反应，及其在有机合成及反应机理研究中的应用。
This paper focuses on the cycloaddition reactions on solid phase supports and their applications in organic synthesis and mechanism research.
用过渡状态理论和量子化学AM1方法，对4 甲基5 烯庚腈氧化物环加成反应机理进行了研究。
The reaction mechanism of 4-methyl-5-ethenyl-heptanitril e oxide cycloaddition is studied with the molecular orbital AM1 method and transit ion state theory.
在此步反应中成功地以醋酸乙烯代替乙炔及其衍生物作为环合试剂进行了1,3 -偶极环加成反应，得到了目标产物。
With vinyl acetate as reactant in place of acetylene and its derivates in 1, 3 dipolar cycloaddition, the target product was obtained successfully.
再与低含氢硅油进行硅氢加成反应，合成出环氧聚醚改性聚甲基硅氧烷；
It was then reacted with low hydrogen containing silicone oil via hydrosilylation to produce epoxy-containing polyether silicone.
环戊烯与氢卤素加成反应制备卤代环戊烷，工艺流程简单，原料经济，收率高，易实现工业化。
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.
采用化学改性法，选择多官能团酚醛环氧树脂(F—51)与二乙醇胺进行定量加成反应，合成了一种在分子结构上既具有环氧基团，又具有亲水性基团的改性树脂。
According to the molecule design, a kind of modified resin which have both epoxy groups and hydrophilic groups was synthesized from polyfunctional group novolac epoxy resin (F-51) and diethanolamine.
研究了烷基苯基硅铜酸盐与2-环烯酮的1，4-加成反应的立体选择性，并合成了一系列新的2-取代-3-硅基环烷酮。
The stereoselectivity of 1,4-addition of dialkylphenylsilyl cuprates to 2-cycloenones was investigated and meantime a series of new 2-substituted-3-silylcycloalkanones were synthesized.
研究了烷基苯基硅铜酸盐与2-环烯酮的1，4-加成反应的立体选择性，并合成了一系列新的2-取代-3-硅基环烷酮。
The stereoselectivity of 1,4-addition of dialkylphenylsilyl cuprates to 2-cycloenones was investigated and meantime a series of new 2-substituted-3-silylcycloalkanones were synthesized.
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