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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.

手性唑硼烷酮能够催化不对称1，3偶极加成反应并取得很好的效果。Asymmetric 1,3-dipolar cycloaddition can be strongly catalyzed by chiral oxazaborolidines.

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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.

本文报道用环加成-芳构化串连反应制备多取代芳香族化合物的方法。The synthesis of polysubstituted aromatic compounds by using tandem cycloaddition aromatization reaction was reported.

研究了碳酸丙烯酯和甲醇经酯交换制备碳酸二甲酯的催化剂及反应工艺条件。In this paper, the catalysts and reaction conditions of the cycloaddition of carbon dioxide and propylene oxide are studied.

目前，在药物合成中绝大部分的1，2，3-三氮唑的合成方法一直沿用1，3-偶极环加成法。In most cases, 1,3-dipolar cycloaddition of azides with acetylenes is the only way to synthesize substituted 1,2,3-triazoles.

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.

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本论文是关于共轭烯炔酮与硝酮化合物反应生成多取代的呋喃化合物的研究，主要从三个方面进行了研究。In this thesis, we have focused on the synthesis of highly substituted furan by the cycloaddition reaction of conjugated enynones with nitrones.

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.

偶极环加成反应在有机功能性分子的合成中很重要，弄清此反应机理很有意义。The 1,3-dipolar cycloaddition reaction is very important in the synthese of the organic and functional molecule, and it is significant to ravel its reaction mechanism.

通过硝酮与烯烃化合物的1，3-偶极环加成反应合成了许多天然产物，如生物碱、β-内酰胺、生物素、氨基糖等。A wide variety of natural products, e. g. alkaloids, β-lactames, biotin, amino sugars has been synthesized by 1,3-dipolar cycloaddition reaction between nitrones and alkenes.

综述了近年来通过环加成反应合成三元、五元、六元和七元杂环C60衍生物的进展。This review deals with the recent progress in the study on preparing the three-, five-, six- and seven-membered heterocycle-fused C60-fullerene derivatives via the cycloaddition reactions.