nucleophile

nucleophile

1. ambient nucleophile

两可亲核试剂, 两可亲核的

2. nucleophile substitution

亲核取代反应

3. Studies of Artificial Hydrolytic Metalloenzymes--The Catalytic Carboxyester Hydrolysis by New Nacrocyclic Polyamine with a Phenolic-pendant as Novel Nucleophile

人工水解金属酶的研究--含酚侧基大环多胺新型亲核体催化羧基酯水解

4. Another is the Lewis definition (also 1923): An acid (see electrophile) is a chemical that can accept an electron pair from a base (see nucleophile), which they share to form a covalent bond.

另一种理论是路易斯(Lewis)理论(也是在1923年发表):酸(参阅electrophile)就是能由碱(参阅nucleophile)接受一个电子(electron)对形成一个共价键(covalent bond)的化学物质。

5. The kinetic data indicated that the mono-deprotonated oxime group could act as an effective intramolecular nucleophile in the reaction.

实验结果表明,单去质子化的肟基可以作为反应过程中的分子内亲核剂。

6. For a nucleophile, its regioselectivity is also controlled by both steric hindrance and electronic effect.

对于亲核试剂,一般的亲核试剂也同时受电子效应和空间效应的影响;

7. Keywords Isobutylene;Carbocationic polymerization;Nucleophile;Polyisobutylene;

异丁烯;正离子聚合;亲核试剂;聚异丁烯;

8. Catalyzed by sulfuric acid, 2 and 5 were converted to the same product (such as 3c) 3 (or 4) when mercaptan (or phenyl-sulfohydrate) was used as the nucleophile.

所得加成产物在酸催化条件下以乙硫醇为亲核体时生成芳基乙基硫醚;

9. Keywords Cationic polymerization;Isobutylene;Polyisobutylene;Nucleophile;

正离子聚合;异丁烯;聚异丁烯;亲核试剂;

10. Keywords aza-Michael reaction;amine;carbamate;hydroxylamine;nitrogen nucleophile;

氮杂偶联加成反应;胺;氨基甲酸酯;羟胺;氮源;

11. 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。

12. Due to the feasible stereochemical reason, the preferential substitution of epoxide of 19 by the stronger nucleophile, adenine, and reformation of tetrahydrofuran ring took place.

由于可能的立体化学原因, 更强的碱-腺嘌呤进攻化合物 19 时, 得到了环氧开环的结果, 并发生了分子内重排。

13. Keywords tellurium;benzoquinone;naphthoquinone;Grignard reagent;nucleophile;

碲;苯醌;萘醌;格氏试剂;亲核试剂;

14. Keywords Carbonic anhydrase;Model;Nucleophile agent;Rate constant;

碳酸酐水解酶;模拟物;亲核试剂;速率常数;

15. Keywords Poly(N;N-dimethylaniline);Canon radical;Nucleophile;

聚(N;N-二甲基苯胺);正离子自由基;亲核试剂;

16. 8. Amines can engage in nucleophile substitution reaction with alky.

胺能参加与卤代烷的亲核取代反应。

17. Keywords super acid;proton;nucleophile;conjugate;

超强酸;共轭;质子;亲核;

18. The kinetics and mechanism of the reactions of blocked isocyanates are reviewed and two urethane forming reaction mechanisms by which a blocked isocyanate can react with a nucleophile are provided.

近年来,随着人们对水性聚氨酯的重视和开发,封闭异氰酸酯的重视和使用程度进一步加大。

19. Keywords metallohydrolase nucleophile rate constant;

金属水解酶;亲核试剂;速率常数;

20. Keywords rhodium-catalyzed;asymmetric;nucleophile;1;4-conjugate addition;

铑催化;不对称;亲核试剂;1;4-共轭加成;

21. Keywords Carbocationic polymerization;Controllable polymerization;Isobutylene;Nucleophile;

阳离子聚合;可控聚合;异丁烯;亲核试剂;

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