| 1. | Amines can engage in nucleophile substitution reaction with alky . 胺能参加与卤代烷的亲核取代反应。 |
| 2. | Bromination substitution reaction of nitro - triphenylether 硝基三苯醚的溴化反应 |
| 3. | Nucleophilic substitution reaction 亲核取代反应 |
| 4. | A study on the thermodynamic properties of axial coordination substitution reaction of amino - acid compounds and macrocyclic cobalt complex 大环钴配合物与氨基酸类物质的轴向配位取代反应热力学性质研究 |
| 5. | The highly reactive nature of the p - cl bonds allows the substitution reactions to occur easily . a series of polyphosphazene are made by substitution reaction with chlorine 由于磷氯键的活泼性,可以使氯很容易被取代,正是由于这个原因,可以制得一系列的磷腈化合物。 |
| 6. | In 1984 , dr . chou began the study of deprotonation substitution reaction of 3 - sulfolene and developed the reaction to an ideal methodology of using 3 - sulfolene as the precursor for butadienyl - 1 - anion 在合成上的应用,成功的验证它们可当成共轭双烯的亲核性,或亲电性的对等物 |
| 7. | For the special physical and chemical character of aluminum , a nickel layer is deposited before electroplating . it can avoid the active surface of aluminum oxidized again or substitution reaction in the bath 由于铝特殊的物化性质,电镀镍铬合金前采用预镀镍的工艺,避免活化后的铝基体表面再次被氧化或在镀液中发生置换反应。 |
| 8. | Optical characterization showed interesting photonic properties and attempts to assemble them into 2d and 3d arrays were carried out . the core / shell structures of znse / mse ( m = ag , cu , pb , cd ) microspheres were also synthesized by a simple substitution reaction 进行了znse微球自组装的尝试,并初步获得了微球排列紧密的二维znse片和三维紧密堆积结构,展现了很好的自组装前景。 |
| 9. | In this paper , research progress in the studying of high efficiency halogenation agent in recent years was reviewed and the application of a series of high efficiency halogenating reagents in halogenating substitution reaction and halogenating addition reaction were introduced 本文对近年来在高效卤化试剂研究方面取得的进展进行了综述,介绍了系列高效卤化剂在卤化取代反应、卤化加成反应等方面的应用。 |
| 10. | The aromatic electrophilic substitution reaction was studied using nmr for the first time . on the base of substituents effects on the benzene , the orientation effect and reactivity was analysised quantitatively . this method may mostly predict the aromatic electrophilic substitution reaction 首次采用nmr研究芳基亲电取代反应.依据取代基对苯的影响,定量分析了定位效应和反应活性.此法对芳基亲电取代反应有一定的预见性 |