| 1. | The expected 2＋2 cycloadduct (79) was not observed .
未见到所预期的22环加成物（79） |
| 2. | The expected 2 2 cycloadduct ( 79 ) was not observed
未见到所预期的2 2环加成物（ 79 ） |
| 3. | Study of cycloaddition of anthracene with c60c
6与蒽环加成反应研究 |
| 4. | Theoretical study on the 1 , 3 - dipolar cycloaddition reaction of c , n - dimethyl nitrone and acrylonitrile
偶极环加成反应的理论研究 |
| 5. | Studies on the synthesis of imide - functionalized , - unsaturated ketones and their cycloaddition reaction
不饱和酮的合成及与二烯烃环加成反应的研究 |
| 6. | Theoretical study on the stereoselectivity of intramolecular 4 - methyl - 5 - ethenyl - heptanitrile oxide cycloaddition
庚腈氧化物分子内环加成反应的立体选择性 |
| 7. | This paper focuses on the cycloaddition reactions on solid phase supports and their applications in organic synthesis and mechanism research
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。 |
| 8. | The system of [ 4 + 3 ] cycloaddition and its application in organic synthesis are reviewed . a brief discussion about the future research is also given
本方对[ 4 + 3 ]环加成反应体系以最近在合成中的应用进行了综述，并对进一步研究的方向进行了讨论。 |
| 9. | The system of [ 4 + 3 ] cycloaddition and its application in organic synthesis are reviewed . a brief discussion about the future research is also given
摘要本方对[ 4 + 3 ]环加成反应体系以最近在合成中的应用进行了综述，并对进一步研究的方向进行了讨论。 |
| 10. | A wide variety of natural products , e . g . alkaloids , - lactames , biotin , amino sugars has been synthesized by 1 , 3 - dipolar cycloaddition reaction between nitrones and alkenes
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?物，如生物硷、 -内酰胺、生物素、氨基糖等。 |
