substitution reaction 中文意思是什麼

substitution reaction 解釋
取代反應
  • substitution : n. 1. 代，代用，代替，更替，置換。2. 【化學】取代；【數學】代換；代入；【法律】預定繼承人；【語法】詞的代用。adj. -al ,-ary adj.
  • reaction : n 1 反作用，反應；反沖；反動力。2 【政治學】反動，倒退；復古（運動）。3 【化學】反應，【物理學】...
  1. Amines can engage in nucleophile substitution reaction with alky.

    胺能參加與鹵代烷的親核取代反應。
  2. As to the separation of p - xylene / m - xylene, in order to blend polymer hydrophobe with p - cd which is preferential to adsorb p - xylene, etherified p - cd was synthesized using benzyl chloride ( phch2cl ). the influences of etherification conditions on the reaction conversion and the degree of substitution of etherified p - cd were investigated. the reaction conversion increases with the increasing of molar ratio of phcr ^ cl : p - cd and the concentration of p - cd

    對于px mx體系的分離，為使對px具有優先絡合能力的一環糊精（ cd ）能夠與油溶性高分子共混，本文採用williamson合成法運用氯化芐（ phch _ 2cl ）使-環糊精（ - cd ）醚化，並由元素分析結果，計算出醚化產物的取代度和轉化率，系統地考察了反應條件對轉化率和取代度的影響。
  3. Bromination substitution reaction of nitro - triphenylether

    硝基三苯醚的溴化反應
  4. 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

    在合成上的應用，成功的驗證它們可當成共軛雙烯的親核性，或親電性的對等物
  5. 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

    進行了znse微球自組裝的嘗試，並初步獲得了微球排列緊密的二維znse片和三維緊密堆積結構，展現了很好的自組裝前景。
  6. 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

    由於鋁特殊的物化性質，電鍍鎳鉻合金前採用預鍍鎳的工藝，避免活化后的鋁基體表面再次被氧化或在鍍液中發生置換反應。
  7. A study on the thermodynamic properties of axial coordination substitution reaction of amino - acid compounds and macrocyclic cobalt complex

    大環鈷配合物與氨基酸類物質的軸向配位取代反應熱力學性質研究
  8. Mirtazapine was prepared by a seven - step reaction, namely nucleophilic ring - opening reaction, chlorination, cyclization, uncleophilic substitution, hydrolysis, reduction and cyclization from styrene oxide and n - methylethanolamine as the starting materials, with overall yield of 22. 6 %

    摘要以環氧苯乙烯和n -甲基乙醇胺為起始原料，經親核開環、氯代和環合反應得到中間體1 -甲基3 -苯基哌嗪。
  9. Nucleophilic substitution reaction

    親核取代反應
  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

    首次採用nmr研究芳基親電取代反應.依據取代基對苯的影響，定量分析了定位效應和反應活性.此法對芳基親電取代反應有一定的預見性
  11. 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

    由於磷氯鍵的活潑性，可以使氯很容易被取代，正是由於這個原因，可以制得一系列的磷腈化合物。
  12. 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

    本文對近年來在高效鹵化試劑研究方面取得的進展進行了綜述，介紹了系列高效鹵化劑在鹵化取代反應、鹵化加成反應等方面的應用。
  13. All the subjects were genotyped by pcr - rflp ( polymerase chain reaction - restriction fragment length polymorphism ) at polymorphic sac i site inside the exon 7 of the ahsg gene. this polymorphism involves a nucleotide substitution of c to g at the middle nucleotide of the codon at amino acid position 238 resulting in the replacement of threonine ( acc ) with serine ( agc )

    所有的樣本通過聚合酶鏈式反應?限制性片段長度多態性方法（ pcr - rflp ）對ahsg基因的第7個外顯子內的sac多態性位點進行基因分型，該多態性位點為238號氨基酸密碼子中間的堿基c到g的替換，使蘇氨酸（ thr ， acc ）變為絲氨酸（ ser ， agc ） 。
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