Effect of N-Containing Nucleophiles on IB Carbocationic Polymerization(III) --Effect of Hexpyridine and the Mechanism of Nucleophiles;
含氮类亲核试剂对异丁烯阳离子聚合的作用(III)——六氢吡啶的作用及其含氮类亲核试剂作用机理
Effect of N-Containing Nucleophiles on IB Carbocationic Polymerization(I) ——Effect of Triethylamine on IB Carbocationic Polymerization;
含氮类亲核试剂对异丁烯阳离子聚合的作用(Ⅰ)——三乙胺对以四氯化钛为共引发剂阳离子聚合的作用
Effect of N-Containing Nucleophiles on IB Carbocationic Polymerization(II) --Effect of Aniline Derivative on IB Carbocationic Polymerization;
含氮类亲核试剂对异丁烯阳离子聚合的作用(II)——苯胺衍生物对异丁烯阳离子聚合体系的作用
Effect Mechanism of Nucleophiles on IB Carbocationic Polymerization;
亲核试剂在异丁烯阳离子聚合中作用机理研究
The additionhydrolysis reaction of benzimidazolium salts with Grignard reagent nucleophiles was found and reported.
发现并报道了苯并咪唑盐与格利雅试剂等亲核试剂的加成-水解反应。
Mechanistic Roles of Nucleophiles in the Carbocationic Polymerization of Isobutylene;
亲核性调节剂在异丁烯活性阳离子聚合中发挥着极其重要的作用 ,其作用机理主要包括 :(1)碳阳离子稳定化作用 ,即亲核性试剂或它们与Lewis酸生成的络合物与增长链的末端结合 ,来降低活性中心阳离子的“阳离子性” ,抑制副反应 ,使聚合反应呈现活性聚合特征 ;(2 )质子捕获作用 ,即亲核性试剂捕获质子 ,抑制质子的不可控引发和链转移反应 ;(3)增长链表观稳定作用 ,即亲核试剂降低了增长速率与引发速率之比 ,提高引发效率 ,降低增长速率 ,降低分子量分布 ;(4)抑制自由离子增长作用 ,即亲核试剂与质子源和Lewis酸反应 ,生成同阴离子 ,产生同离子效应 ,抑制自由离子活性中心的引发增长作用。
A study of reaction mechanism of the nucleophilic reagent in the cationic polymerization of isobutene with molecular simulation;
分子模拟法研究亲核试剂在异丁烯正离子聚合反应中的作用机理
Application of Thiol in Organic Synthesis as Nucleophilic Reagent
硫醇作亲核试剂在有机合成中的应用
The reaction of the hexyl hexylphosphonite is studied with some nucleophilic reagents in the basicity and tetrachoromethane, and the mechanism of the reaction is discussed.
研究了正己亚膦酸正己酯在碱性条件下以四氯化碳为溶剂，与各种亲核试剂的反应情况。
It compares the nucleophilicity of nocleophilic reagent with the similarities and differences of basicity.
把亲核剂的亲核性和碱性的区别与相同之处进行了比较。
The carbon should be susceptible to attack by a nucleophilic species.
碳容易被亲核试剂进攻。
The first is extremely resistant to nucleophilic reagents.
前者极端地阻抗亲核试剂。
Application of Thiol in Organic Synthesis as Nucleophilic Reagent
硫醇作亲核试剂在有机合成中的应用
The properties ofnucleophiles also influence the position of attack.
亲核试剂的性质也影响反应进攻的位置.
Synthesis and Application of Novel Chiral Nucleophilic Amine Catalysts;
新型手性亲核胺催化剂的合成与应用研究
Synthesis and Characterization of Chiral Oxygen Nucleophile of Amino-alcohol;
氨基醇类手性氧亲核试剂的合成及表征
HALOPHILIC REACTIONS OF NUCLEOPHILES--2.CROWN ETHER-PROMOTED REACTIONS OF CF_2Br_2 AND PhSNa
亲核试剂的亲卤反应——2.冠醚促进的二氟二溴甲烷与硫酚钠的反应
A chemical compound or group that is attracted to nuclei and tends to donate or share electrons.
亲核试剂受核吸引并易于转移或共用电子的化学化合物
This article reviews recent progress in nucleophilic reactions of theα- carbon in vinylidene ruthenium complexes. The nucleophiles include alkene, alkyne, alcohol, acid, amine, water, etc.
综述了近几年钌亚乙烯基络合物中间体α碳的亲核反应。亲核试剂包括烯烃、烃、、、、等。
The addition of hydrogen bromide involves the attachment of an anionic nucleophile in the final step.
溴化氢加成的最后一步，是负离子亲核试剂的附加。
The Research of New Synthetic Methodologies of Fe (Ⅲ) Catalyzed Nucleophilic Substitution of Propargylic Acetates;
铁（Ⅲ）试剂催化的乙酸炔丙酯亲核取代反应的新方法学研究
dyes substantive assistants
亲染料性助剂,染料亲合性助剂
Treatments of pyrylium salts with various nucleophilic reagents allows the production of a host of functionalized derivatives.
如果各种亲核试剂与吡喃盐反应，就可制取许多种带官能基的衍生物。
Studies of Artificial Hydrolytic Metalloenzymes:the Catalytic Carboxyester Hydrolysis by New Macrocyclic Polyamine Zinc(Ⅱ) Complexes with a Phenolic-pendant as Novel Nucleophile;
人工合成水解酶研究 新制大环多胺Zn(Ⅱ)的酚配合物亲核试剂催化羧基酯水解
committed dose equivalent
【核】约定剂量当量
hydrophilic silicone finishing agent
亲水型有机硅整理剂
Aromatic Nucleophilic Addition and Substitution Reaction of Electron-deficient Benzene;
缺电子苯环的亲核加成与亲核取代反应